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DTSTART;TZID=America/Chicago:20260501T150000
DTEND;TZID=America/Chicago:20260501T160000
DTSTAMP:20260607T043506
CREATED:20260428T132938Z
LAST-MODIFIED:20260428T132946Z
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SUMMARY:PhD Dissertation Defense: Mr. Andrew Frohmader
DESCRIPTION:Graded multiplicities in the Kostant-Rallis setting\nMr. Andrew Frohmader\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nThis dissertation contains two main results. First\, we provide combinatorial branching rules for GL(n\, C) to O(n\, C) and GL(2n\, C) to Sp(2n\, C) extending the Littlewood restriction rules. Second\, we use these branching rules and the combinatorics of GL(n\, C)-crystals to derive a formula for the graded multiplicity of a K-type in the regular functions on the K-nilpotent cone for GL(n\, R)\, GL(n\, C) and GL(n\, H). \nAdvisor:\nJeb Willenbring \nCommittee Members:\nAllen Bell\, Chris Hruska\, Istvan Lauko\, and Kevin McLeod
URL:https://uwm.edu/math/event/phd-dissertation-defense-mr-andrew-frohmader/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20260409T163000
DTEND;TZID=America/Chicago:20260409T173000
DTSTAMP:20260607T043506
CREATED:20260218T161218Z
LAST-MODIFIED:20260318T142245Z
UID:10016266-1775752200-1775755800@uwm.edu
SUMMARY:UWM Marden Lecture in Mathematics: Juggling Counts
DESCRIPTION:Juggling Counts\nPresented by Prof. Steve Butler\, Morrill\, Professor of Mathematics at Iowa State University \nMathematics is a language which can help us describe and explore patterns. One source of patterns that mathematicians have been exploring comes from juggling (the tossing of objects\, usually balls or clubs). We will look at multiple ways to describe juggling patterns that allow us to find new juggling patterns\, and to count how many possible patterns exist. We can compare answers to various problems to give a combinatorial proof of Worpitzky’s identity. We will also look at a few juggling-based problems that mathematics has not yet succeeded in answering. \nThis event is a part of the Marden Lecture Series\, each Spring the Department of Mathematical Sciences invites a distinguished mathematician to lecture to a general audience. The Marden Lecture honors Morris Marden (1905 – 1991)\, who founded our graduate program and made our department a research department. The Marden lecture is funded through the Miriam and Morris Marden Fund and is co-sponsored by the Department of Mathematical Sciences. \nA banquet will be held in the LEC AmFam Dream Studio following the lecture.
URL:https://uwm.edu/math/event/marden-lecture-dr-steve-butler/
LOCATION:Lubar Hall N140\, 3202 N Maryland Ave\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Marden Lecture Series
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250811T133000
DTEND;TZID=America/Chicago:20250811T153000
DTSTAMP:20260607T043507
CREATED:20250730T140303Z
LAST-MODIFIED:20250730T140303Z
UID:10016231-1754919000-1754926200@uwm.edu
SUMMARY:PhD Dissertation Defense: Mr. Marco Vaassen
DESCRIPTION:A Bootstrap Goodness-of-Fit Test for Parametric Survival Models\nMr. Marco Vaassen\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nIn many scientific disciplines\, finding a suitable model compatible with real-world observations is the basis for statistical inference and prediction. In survival analysis\, this task is further complicated by censoring. This dissertation introduces a new bootstrap approach to goodness-of-fit testing for parametric survival models\, based on the Kaplan–Meier process with estimated parameters. The test statistic compares the nonparametric Kaplan–Meier estimator to a fitted parametric model\, quantifying deviations from the null via functionals that yield Kolmogorov–Smirnov or Cramér–von Mises-type tests. We establish the asymptotic correctness of our method by showing that the original and bootstrap test statistics have the same weak limit under the null. The result is a consistent\, easily implementable framework for assessing model fit in censored settings. \nAdvisor:\nProf. Richard Stockbridge\, Prof. Gerhard Dikta \nCommittee Members:\nProf. Richard Stockbridge\, Prof. Gerhard Dikta\, Prof. Chao Zhu\, Prof. David Spade\, and Prof. Vincent Larson
URL:https://uwm.edu/math/event/phd-dissertation-defense-mr-marco-vaassen/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250808T140000
DTEND;TZID=America/Chicago:20250808T160000
DTSTAMP:20260607T043507
CREATED:20250808T010452Z
LAST-MODIFIED:20250808T010452Z
UID:10016232-1754661600-1754668800@uwm.edu
SUMMARY:PhD Dissertation Defense: Mr. Shenyan Pan
DESCRIPTION:Doubly Stochastic Model With Covariates For Replicated Poisson Point Processes\nMr. Shenyan Pan\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nPoisson point processes (PPPs) are powerful tools for modeling random point occurrences in multidimensional spaces\, with applications across various fields. Although the traditional literature has focused on single realizations\, replicated point processes are becoming increasingly common due to the growing availability of complex data. This dissertation develops a doubly stochastic model for replicated PPPs that incorporates covariates\, extending latent component models to capture external effects. The proposed model expresses the log-intensity function as the sum of a mean function and latent component scores that vary with covariates. To ensure identifiability\, component scores are constrained to be zero-mean and uncorrelated via centering and orthogonality. Parameter estimation is performed using penalized maximum likelihood\, employing Newton–Raphson updates and the Laplace approximation for conditional distributions. Simulation studies assess the model’s stability across various covariate structures (linear and nonlinear)\, baseline rates\, and sample sizes. The results demonstrate decreasing error with increasing sample size\, confirming the estimators’ consistency. The model is applied to real data from the Divvy bicycle-sharing system in Chicago\, analyzing daily usage at a representative station. The results reveal a nonlinear relationship between temperature and ridership\, with peak usage occurring at moderate temperatures and declines observed under extreme heat or cold. This modeling framework improves the interpretability and predictive accuracy of PPPs with covariates\, offering practical insights for applications such as fleet allocation in bicycle-sharing systems. \nAdvisor:\nProf. Daniel Gervini \nCommittee Members:\nProf. Lei Wang\, Prof. Chao Zhu\, Prof. David Spade\, and Prof. Vytaras Brazauskas \nLink to Event
URL:https://uwm.edu/math/event/phd-dissertation-defense-mr-shenyan-pan/
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
LOCATION:https://teams.microsoft.com/l/meetup-join/19%3aCQyl6Y73Ps7zxWXrM3dRP8rS7Q89Bvw2sceTNhSLlUw1%40thread.tacv2/1754451851629?context=%7b%22Tid%22%3a%220bca7ac3-fcb6-4efd-89eb-6de97603cf21%22%2c%22Oid%22%3a%2234947e74-60a7-40f3-ae30-4a6cd4dc57b7%22%7d
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BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250807T140000
DTEND;TZID=America/Chicago:20250807T160000
DTSTAMP:20260607T043507
CREATED:20250725T141802Z
LAST-MODIFIED:20250730T151929Z
UID:10016230-1754575200-1754582400@uwm.edu
SUMMARY:PhD Dissertation Defense: Mr. Joe Paulson
DESCRIPTION:Theory of Z_n – Structures\nMr. Joe Paulson\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nIn this defense\, we discuss the boundaries of Type F_n groups; those being groups whose K(G\,1) complex has a finite n-skeleton. The boundaries we develop extend the notion of Z-boundaries to what we call Z_n-boundaries. This extension centers around groups no longer acting geometrically on contractible spaces\, but instead n-connected spaces. Immediately this means the major theorems of “Boundary Swapping” and “Shape Equivalence of Z-Boundaries” will need revision\, but a more subtle point to be discussed is that the category of spaces must also be generalized. \nAfter discussing the foundation work for a theory of Z_n-boundaries\, we end with an exploration how these new structures can be related to other well-known compactifications such as the one-point compactification\, end-point compactification\, and Z-compactifications. \nAdvisor:\nCraig Guilbault \nCommittee Members:\nBoris Okun\, Chris Hruska\, Jonah Gaster\, and Pamela Harris
URL:https://uwm.edu/math/event/phd-dissertation-defense-mr-joe-paulson/
LOCATION:EMS Building\, Room E408\, E408; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250611T143000
DTEND;TZID=America/Chicago:20250611T163000
DTSTAMP:20260607T043507
CREATED:20250604T182125Z
LAST-MODIFIED:20250604T182125Z
UID:10016229-1749652200-1749659400@uwm.edu
SUMMARY:PhD Dissertation Defense: Mr. Steffen Domke
DESCRIPTION:Convergence Of A Numerical Scheme For Optimal Stopping Of A Diffusion Over A Finite Time-Horizon\nMr. Steffen Domke\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nThis dissertation establishes an approximation scheme for finite time-horizon\nstopping problems involving a singular stochastic process on a compact state\nspace\, characterized by a singular martingale problem. The stopping problem\nis converted to a linear program (LP) with infinitely many constraints and\nvariables having infinite degrees of freedom. \nTo obtain a numerical solution\, the infinite-dimensional LP is converted\ninto a finite LP. The original LP is approximated by a sequence of finite LPs\,\nlimiting to both a finite set of constraints and a finite-dimensional solution\nspace. The value of an optimal approximate solution is shown to be arbitrarily\nclose to the optimal value of original LP\, and hence of the stopping probem\,\nwith increasing refinement of the approximation. Feasibility of the approximate\nsolutions is guaranteed due weak convergence of measures\, but only in the limit.\nThe problem of pricing an American floating strike lookback call option can be\nreformulated to fit the models covered by this dissertation. The price and the\nstopping boundary can therefore be approximated using this scheme. \nAdvisor:\nRichard Stockbridge \nCommittee Members:\nDavid Spade\, Lei Wang\, Jeb Willenbring\, and Chao Zhu
URL:https://uwm.edu/math/event/phd-dissertation-defense-mr-steffen-domke/
LOCATION:EMS Building\, Room W434\, W434; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250519T160000
DTEND;TZID=America/Chicago:20250519T180000
DTSTAMP:20260607T043507
CREATED:20250505T163059Z
LAST-MODIFIED:20250505T163336Z
UID:10016227-1747670400-1747677600@uwm.edu
SUMMARY:MS Thesis Defense: Mr. Cheri Janardhanan
DESCRIPTION:Exploring the Development of Function Concepts in the Illustrative Mathematics Curriculum\nMr. Cheri Janardhanan\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nThis thesis examines the evolution of function concepts within the Illustrative\nMathematics (IM) curriculum\, focusing on how these concepts are introduced\,\ndeveloped\, and assessed from Grade 8 through secondary school. By analyzing\ncurriculum materials\, instructional strategies\, and student outcomes\, this study\naims to provide insights into the effectiveness of the IM approach in fostering a\ndeep understanding of functions among high school students. \nAdvisor:\nKevin McLeod
URL:https://uwm.edu/math/event/ms-thesis-defense-mr-cheri-janardhanan/
LOCATION:EMS Building\, Room E408\, E408; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
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GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E408 E408; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E408; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250509T113000
DTEND;TZID=America/Chicago:20250509T123000
DTSTAMP:20260607T043507
CREATED:20250505T161927Z
LAST-MODIFIED:20250505T161927Z
UID:10016226-1746790200-1746793800@uwm.edu
SUMMARY:MS Thesis Defense: Mr. Micah Hesketh
DESCRIPTION:Compartmental Ordinary Differential Equation Model of the Amyloid-beta Cascade Hypothesis in Transgenic TgF-344AD Rats\nMr. Micah Hesketh\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nAlzheimer’s disease is a devastating neurodegenerative disease whose etiology is poorly understood and for which current treatments provide modest control of symptoms. There are many different hypotheses which seek to explain the cause of this disease\, one of which is the Amyloid-beta cascade hypothesis. To better investigate the causes and progression of the disease\, animal models have been developed\, notably the transgenic TgF344-AD rat. We combine observations on the accumulation of amyloid-beta\, changes in neuronal density\, and a decline in cognitive performance in rats with a simple compartmental ordinary differential equation model based on the Amyloid-beta cascade hypothesis. \nAdvisor:\nPeter Hinow \nCommittee Members:\nDr. Peter Hinow\, Dr. Gabriella Pinter\, and Dr. Lijing Sun
URL:https://uwm.edu/math/event/ms-thesis-defense-mr-micah-hesketh/
LOCATION:EMS Building\, Room E408\, E408; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E408 E408; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E408; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250503T100000
DTEND;TZID=America/Chicago:20250503T110000
DTSTAMP:20260607T043507
CREATED:20250423T134414Z
LAST-MODIFIED:20250423T134414Z
UID:10016224-1746266400-1746270000@uwm.edu
SUMMARY:MS Thesis Defense: Mrs. Jennifer Hartzheim
DESCRIPTION:A Mini History of Geometry with an Emphasis on Transformational Geometry and an Analysis of Illustrative Mathematics Geometry Curriculum\nMrs. Jennifer Hartzheim\nUniversity of Wisconsin-Milwaukee \nA brief look at the history of geometry\, with special attention to transformational geometry. Followed by a discussion of my analysis of Illustrative Mathematics to determine if the curriculum uses a transformational approach to teaching geometry. \nAdvisor:\nDr. Kevin McLeod \nCommittee Members:\nDr. Kevin McLeod\, Dr. Suzanne Boyd\, and Dr. Jeb Willenbring
URL:https://uwm.edu/math/event/ms-thesis-defense-mrs-jennifer/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250502T140000
DTEND;TZID=America/Chicago:20250502T150000
DTSTAMP:20260607T043507
CREATED:20250421T130321Z
LAST-MODIFIED:20250421T130321Z
UID:10016221-1746194400-1746198000@uwm.edu
SUMMARY:MS Thesis Defense: Mr. Luis Hasenauer
DESCRIPTION:Bootstrap-Based Robustness Analysis of Parameter Optimization in Climate Models Using QuadTune\nLuis Hasenauer\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nTuning the parameters of climate models is essential for improving their performance\, but this process is often complicated by structural limitations\, overfitting\, and trade-offs between different regions or variables. In my thesis\, I combined the QuadTune optimization framework with nonparametric bootstrap resampling to analyze parameter uncertainty and identify tuning conflicts. \nAdvisor:\nVincent Larson \nCommittee Members:\nDavid Spade\, Daniel Gervini
URL:https://uwm.edu/math/event/ms-thesis-defense-mr-luis-hasenauer/
LOCATION:EMS Building\, Room E408\, E408; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E408 E408; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E408; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250501T170000
DTEND;TZID=America/Chicago:20250501T190000
DTSTAMP:20260607T043507
CREATED:20250421T131317Z
LAST-MODIFIED:20250421T131317Z
UID:10016222-1746118800-1746126000@uwm.edu
SUMMARY:MS Thesis Defense: Mr. Kyle Piontek
DESCRIPTION:Mathematical Modeling Prompts in the Illustrative Mathematics Algebra 2 Course\nKyle Piontek\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nAn analysis of the mathematical modeling in the modeling prompts from the Illustrative Mathematics Algebra 2 curriculum. In this presentation we will discuss how well the mathematical modeling process is represented by the tasks provided by the curriculum. \nAdvisor:\nDr. Kevin McLeod \nCommittee Members:\nDr. Kevin McLeod\, Dr. Gabriella Pinter\, and Dr. Jeb Willenbring
URL:https://uwm.edu/math/event/ms-thesis-defense-mr-kyle-piontek/
LOCATION:EMS Building\, W109
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250425T133000
DTEND;TZID=America/Chicago:20250425T143000
DTSTAMP:20260607T043507
CREATED:20250413T191318Z
LAST-MODIFIED:20250421T130410Z
UID:10016219-1745587800-1745591400@uwm.edu
SUMMARY:MS Thesis Defense: Mr. Jackson Thurmond
DESCRIPTION:Generalized Linear Model approach to the Prediction of the outcome of Mixed Martial Arts Fights\nMr. Jackson Thurmond\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nMixed martial arts is a complex combat sport that encompasses striking\, grappling and submissions. In a sport where fights can be won by finishing a fight or go to decision there is a multitude of factors that can influence the outcome of a fight. In an effort to determine which factors are statistically significant to a fight a generalized linear model approach was selected. Since mixed martial arts is a sport in which two competitors fight\, and one is declared a winner\, the result of a fight can be thought of a binary classification problem. \nAdvisor:\nDavid Spade \nCommittee Members:\nDavid Spade\, Chao Zhu\, and Lijing Sun
URL:https://uwm.edu/math/event/ms-thesis-defense-mr-thurmund-jackson/
LOCATION:EMS Building\, Room E408\, E408; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
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END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250425T123000
DTEND;TZID=America/Chicago:20250425T133000
DTSTAMP:20260607T043507
CREATED:20250423T131241Z
LAST-MODIFIED:20250423T131241Z
UID:10016223-1745584200-1745587800@uwm.edu
SUMMARY:Graduate Student Colloquium: Levi Montee
DESCRIPTION:Partitioning the Natural Numbers with Fibonacci-like Sequences\nLevi Montee\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nFamously seen in the displacement of seeds in a sunflower\, the branching of tree limbs or enumerating results in a variety of combinatorics problems\, the Fibonacci sequence has become one of the most recognizable sequences in mathematics. Beginning f0 = 0\, f1 = 1\, and continuing fn+1 = fn + fn-1\, this simple recurrence relation has been well studied for centuries. In this talk\, we will investigate sequences determined by the same recurrence relation given alternative starting points. We attempt to classify these sequences\, see which familiar Fibonacci properties are kept intact\, and examine when two such sequences share terms. Ultimately\, we aim to find a set of disjoint Fibonacci-like sequences that partition the natural numbers\, and see how these might be useful in solving particular logic games/puzzles.
URL:https://uwm.edu/math/event/graduate-student-colloquium-levi-montee/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250418T123000
DTEND;TZID=America/Chicago:20250418T133000
DTSTAMP:20260607T043507
CREATED:20250416T205729Z
LAST-MODIFIED:20250416T205729Z
UID:10016220-1744979400-1744983000@uwm.edu
SUMMARY:Graduate Student Colloquium: Noah Mitchell\, Levi Montee\, and Harrison Piehowski
DESCRIPTION:The RSA Algorithm: Demonstration and Proofs\nNoah Mitchell\, Levi Montee\, and Harrison Piehowski\nGraduate Students\nUniversity of Wisconsin-Milwaukee \nIn this talk\, we will explore the RSA algorithm\, one of the most widely used cryptographic systems. Starting with a brief history of its development by Ron Rivest\, Adi Shamir\, and Leonard Adleman in the late 1970s\, we will then demonstrate RSA’s effectiveness through practical examples and mathematical proofs. Our presentation will include an interactive role-play\, where two presenters use RSA to securely send messages\, while a third attempts to decrypt them without the private key\, showcasing RSA’s robustness in real-world scenarios.
URL:https://uwm.edu/math/event/graduate-student-colloquium-noah-levi-harrison/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250415T153000
DTEND;TZID=America/Chicago:20250415T170000
DTSTAMP:20260607T043507
CREATED:20250324T183250Z
LAST-MODIFIED:20250421T130347Z
UID:10016216-1744731000-1744736400@uwm.edu
SUMMARY:MS Thesis Defense: Mr. Gregor Grote
DESCRIPTION:Homomesy: Theory\, Applications\, and Explorations\nGregor Grote\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nHomomesy is a phenomenon that occurs in combinatorial structures when the average value of a statistic over each orbit is the same. This talk explores the theory of homomesy for arbitrary sets\, functions\, and statistics. I provide general results about homomesy and show how these can be used to solve problems in combinatorics more efficiently. \nAdvisor:\nPamela E. Harris \nCommittee Members:\nSuzanne L. Boyd\nDavid Spade
URL:https://uwm.edu/math/event/ms-thesis-defense-mr-gregor-grote/
LOCATION:EMS Building\, Room W434\, W434; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Defenses
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room W434 W434; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=W434; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250328T123000
DTEND;TZID=America/Chicago:20250328T133000
DTSTAMP:20260607T043507
CREATED:20250324T150039Z
LAST-MODIFIED:20250324T151003Z
UID:10016214-1743165000-1743168600@uwm.edu
SUMMARY:Graduate Student Colloquium: Jackson Thurmond
DESCRIPTION:Generalized Linear Model Approach to the Prediction of the Outcome of Mixed Martial Arts Fights\nJackson Thurmond\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nMixed martial arts is a complex combat sport that encompasses striking\, grappling and submissions. In a sport where fights can be won by finishing a fight or go to decision there is a multitude of factors that can influence the outcome of a fight. In the Ultimate Fighting Championship a fighter is either designated the red or blue corner. Since mixed martial arts is a sport in which two competitors fight\, and one is declared a winner\, the result of a fight can be thought of a binary classification problem. In an effort to determine which factors are statistically significant to a fight\, a generalized linear model approach was selected.
URL:https://uwm.edu/math/event/graduate-student-colloquium-jackson-thurmond/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250314T140000
DTEND;TZID=America/Chicago:20250314T150000
DTSTAMP:20260607T043507
CREATED:20250217T150523Z
LAST-MODIFIED:20250217T150552Z
UID:10016208-1741960800-1741964400@uwm.edu
SUMMARY:Colloquium: Prof. Shamgar Gurevich
DESCRIPTION:How you think on a function defined on 0\,1\,…\,N-1?\nProf. Shamgar Gurevich\nProfessor of Mathematics\nUniversity of Wisconsin-Madison \nBetween thousand to million times per day\, your cellphone calculates the Fourier Transform (FT) of certain functions defined on 0\,1\,…\,N-1\, with N large (order of magnitude of thousands and more). The calculation is done using the Fast Fourier Transform (FFT) – discovered by Cooley–Tukey in 1965 and by Gauss in 1805. \nIn the lecture I want to advertise a beautiful way—due to Auslander-Tolimieri—to obtain the FFT as a natural consequence of an answer to the following: \nQUESTION: How to think on the space of functions on the set 0\,1\,…\,N-1? \nEngineers tell us that there are two answers for this question: \n(A) as functions on that set\, where 0\,1\,…\,N-1 regarded as times; \nand\, \n(B) as functions on that set\, where 0\,1\,…\,N-1 regarded frequencies; \nand then the FT is an operator translating between the two spaces. \nIn the lecture\, I will explain that there is another answer\, i.e.\, a not so well-known third space (C)\, of arithmetic nature\, that also gives an answer to the above question\, and then the FFT appears simply as the composition of two operators:\nthe one translating between spaces (A) and (C)\, and the one that translates (C) to (B). \nRemark: The lecture is prepared to be understood to anyone who is familiar with basic linear algebra. In particular\, advanced undergraduate students\, from computer science\, engineering\, mathematics\, physics\, etc\, are more than welcome to attend.
URL:https://uwm.edu/math/event/colloquium-prof-shamgar-gurevich/
LOCATION:EMS Building\, E495\, 3200 N Cramer St\, Milwaukee\, WI\, United States
CATEGORIES:Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250314T123000
DTEND;TZID=America/Chicago:20250314T133000
DTSTAMP:20260607T043507
CREATED:20250303T160815Z
LAST-MODIFIED:20250310T133528Z
UID:10016212-1741955400-1741959000@uwm.edu
SUMMARY:Graduate Student Colloquium: Ariel Minakawa and Gavin Sayrs
DESCRIPTION:Stirling Permutations to Increasing Plane Trees and Back\nAriel Minakawa and Gavin Sayrs\nUndergraduate Students\nUniversity of Wisconsin-Milwaukee \nA Stirling permutation is a permutation on the multiset {1\,1\, 2\, 2\, 3\, 3\, … \,n\, n} such that any numbers appearing between repeated values of i must be greater than i. Recall that a plane tree is a tree drawn on a plane with no edges crossing. An increasing plane tree is a plane tree where each vertex is labeled from 1 to n\, with labels increasing away from the root. Our main result establishes a bijection from Stirling permutations to its respective increasing plain tree.
URL:https://uwm.edu/math/event/graduate-student-colloquium-ariel-quinn-and-gavin-sayrs/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250228T123000
DTEND;TZID=America/Chicago:20250228T133000
DTSTAMP:20260607T043507
CREATED:20250226T142543Z
LAST-MODIFIED:20250226T142543Z
UID:10016211-1740745800-1740749400@uwm.edu
SUMMARY:Graduate Student Colloquium: Matt McClinton
DESCRIPTION:Fractal Geometry and Non-Integer Dimensions\nMatt McClinton\nPhD Graduate Student\nUniversity of Wisconsin-Milwaukee \nPopularized in the 1980s\, fractals have become something of a household name. These fractal sets often demonstrate peculiar topological properties. One such property is the notion of a fractal dimension. Sets such as the Cantor set\, Sierpinski Gasket (SG)\, and the von Koch curve are traditionally visualized in 2D images. However\, these sets actually exist in-between dimensions 1 and 2! \nCertain fractals can be built using what is known as an Iterated Function System (IFS)\, and there is a powerful theorem stating that having an IFS representation of a fractal provides a simple means of determining the fractal dimension. I will begin by stating the IFS that generates the Sierpinski Gasket. There are two transformations on the Gasket to which creates the Level-n Stretched Sierpinski Gasket (SSG^n). I will demonstrate how one constructs the IFS for SSG^n\, as well as provide the highlights to a theorem in which I prove the fractal dimension of SSG^n.
URL:https://uwm.edu/math/event/graduate-student-colloquium-matt-mcclinton-2/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20250214T123000
DTEND;TZID=America/Chicago:20250214T133000
DTSTAMP:20260607T043507
CREATED:20250205T151547Z
LAST-MODIFIED:20250205T151547Z
UID:10016207-1739536200-1739539800@uwm.edu
SUMMARY:Graduate Student Colloquium: Liam Jemison
DESCRIPTION:Finite Elements for Mathematicians\nLiam Jemison\nPhD Graduate Student\nUniversity of Wisconsin-Milwaukee \nWe will discuss the finite element method\, a powerful approach for numerically solving differential equations. We will introduce the weak formulation of a differential equation from the functional analysis viewpoint with a simple application of the galerkin method\, and then discuss generalizations\, some error estimates\, and software implementations.
URL:https://uwm.edu/math/event/graduate-student-colloquium-liam-jemison/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241115T123000
DTEND;TZID=America/Chicago:20241115T133000
DTSTAMP:20260607T043507
CREATED:20241113T152405Z
LAST-MODIFIED:20241113T164702Z
UID:10016191-1731673800-1731677400@uwm.edu
SUMMARY:Graduate Student Colloquium: Eric Redmon
DESCRIPTION:Finite State Machines and Bounded Permutations\nEric Redmon\nGraduate Student\nMarquette University \nWe define a k-bounded permutation π of length n to be a permutation such that for each pair of adjacent entries $\pi$ and $\pi(i + 1)$ for $i = 1\, 2\, 3\, . . . \, n − 1$ we have $|\pi(i) − \pi(i + 1)| \leq k$. Previous work has shown that the generating function for this family of permutations is rational\, and has computed generating functions for small values of $k$. In this talk\, we will discuss the nature of finite state machines and how we can leverage the insertion encoding devised by Albert\, Linton\, and Ruškuc to build a finite state machine that we can use to find generating functions for larger values of $k$.
URL:https://uwm.edu/math/event/graduate-student-colloquium-eric-redmon/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241101T123000
DTEND;TZID=America/Chicago:20241101T133000
DTSTAMP:20260607T043507
CREATED:20241022T141444Z
LAST-MODIFIED:20241022T144645Z
UID:10016189-1730464200-1730467800@uwm.edu
SUMMARY:Graduate Student Colloquium: Kim Harry
DESCRIPTION:A q-analog of Kostant’s Weight Multiplicity Formula and a Product of Fibonacci Numbers\nKim Harry\nPhD Graduate Student\nUniversity of Wisconsin-Milwaukee \nUsing Kostant’s weight multiplicity formula\, we describe and enumerate the terms contributing a nonzero value to the multiplicity of a positive root µ in the adjoint representation of sl_{r+1}(C)\, which we denote L(˜α)\, where ˜α is the highest root of sl_{r+1}(C). We prove that the number of terms contributing a nonzero value to the multiplicity of the positive root µ = α_i + α_i+1 + · · · + α_j with 1 ≤ i ≤ j ≤ r in L(˜α) is given by the product F_i · F_(r−j+1)\, where F_n is the nth Fibonacci number. Using this result\, we show that the q-multiplicity of the positive root µ = α_i + α_i+1 + · · · + α_j with 1 ≤ i ≤ j ≤ r in the representation L(˜α) is precisely q^{r−h(µ)}\, where h(µ) = j − i + 1 is the height of the positive root µ. Setting q = 1 recovers the known result that the multiplicity of a positive root in the adjoint representation of sl_{r+1}(C).
URL:https://uwm.edu/math/event/graduate-student-colloquium-kim-harry/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241018T123000
DTEND;TZID=America/Chicago:20241018T133000
DTSTAMP:20260607T043507
CREATED:20241008T150918Z
LAST-MODIFIED:20241008T150918Z
UID:10016183-1729254600-1729258200@uwm.edu
SUMMARY:Graduate Student Colloquium: Gregory Mwamba
DESCRIPTION:Blowup of the Nonlinear Klein-Gordon Equation in FLRW Spacetimes\nGregory Mwamba\nGraduate Student\nUniversity of California – Merced \nThe nonlinear Klein-Gordon equations are a class of important evolution equations that describe the movement of spinless relativistic particles\, which can lend understanding in many physical applications. In this talk we will demonstrate a sufficient condition for blowup of the nonlinear Klein-Gordon equation\, with arbitrarily positive initial energy in Friedmann-Lemaître-Robertson-Walker spacetimes. This is accomplished using an established concavity method that has been employed for similar PDEs in Minkowski space. This proof relies on the energy inequality associated with this equation. \nThis talk will be online at the following zoom link: https://wisconsin-edu.zoom.us/j/94983351854 and will also be streamed in EMS E495.
URL:https://uwm.edu/math/event/graduate-student-colloquium-gregory-mwamba/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241011T123000
DTEND;TZID=America/Chicago:20241011T133000
DTSTAMP:20260607T043507
CREATED:20241008T163200Z
LAST-MODIFIED:20241008T163200Z
UID:10016184-1728649800-1728653400@uwm.edu
SUMMARY:Graduate Student Colloquium: Kelsey Brouwer
DESCRIPTION:Combinatorial Models for Some Generalized McMullen Maps in the Case of Two Bounded Critical Orbits\nKelsey Brouwer\nPhD Student\nUniversity of Wisconsin – Milwaukee \nThe family of generalized McMullen maps R(z)= z^n + b + a/z^n has two independent critical orbits. We consider the case in which one critical value lies in the immediate basin of an attracting cycle and the other critical value eventually lands in that immediate basin. Computer-generated images of the dynamical plane suggest the presence of both baby quadratic Julia sets and some sets which appear to be modifications of those. We present combinatorial models of the dynamics which help to explain this phenomena.
URL:https://uwm.edu/math/event/graduate-student-colloquium-kelsey-brouwer/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20241004T123000
DTEND;TZID=America/Chicago:20241004T133000
DTSTAMP:20260607T043507
CREATED:20240925T143928Z
LAST-MODIFIED:20240925T143928Z
UID:10016181-1728045000-1728048600@uwm.edu
SUMMARY:Graduate Student Colloquium: Jillian Cervantes
DESCRIPTION:(t\,r) Broadcast Domination of the Truncated Square Tiling Graph\nJillian Cervantes\nGraduate Student\nUniversity of Wisconsin – Milwaukee \nThis talk will introduce graph domination theory and a generalization called (t\,r) broadcast domination. We study a family of graphs that arise as a finite subgraph of the truncated square tiling\, which utilizes regular squares and octagons to tile the Euclidean plane. For positive integers m and n\, we let Hm\,n be the graph consisting of m rows of n octagons (cycle graph on 8 vertices). For all t ≥ 2\, we provide lower and upper bounds for the (t\, 1) broadcast domination number for Hm\,n for all m\, n ≥ 1. We give exact (2\, 1) broadcast domination numbers for Hm\,n when (m\, n) ∈ {(1\, 1)\, (1\, 2)\, (1\, 3)\, (1\, 4)\, (2\, 2)}. We also consider the infinite truncated square tiling\, and we provide constructions of infinite (t\, r) broadcasts for (t\, r) ∈ {(2\, 1)\, (2\, 2)\, (3\, 1)\, (3\, 2)\, (3\, 3)\, (4\, 1)}. Using these constructions we give upper bounds on the density of these broadcasts i.e.\, the proportion of vertices needed to (t\, r) broadcast dominate this infinite graph. We end with some directions for future study
URL:https://uwm.edu/math/event/graduate-student-colloquium-jillian-cervantes/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240927T123000
DTEND;TZID=America/Chicago:20240927T133000
DTSTAMP:20260607T043507
CREATED:20240924T180747Z
LAST-MODIFIED:20240924T185718Z
UID:10016180-1727440200-1727443800@uwm.edu
SUMMARY:Graduate Student Colloquium: Alexander Moon
DESCRIPTION:Kohnert Properties of Northeast Diagrams\nAlexander Moon\nGraduate Student\nUniversity of Wisconsin – Milwaukee \nKohnert polynomials and posets are combinatorial objects with deep representation theoretic meaning\, generalizing both Schubert polynomials and Demazure characters\, i.e.\, key polynomials. In this talk I will explore what Kohnert posets and polynomials are in general\, then I will discuss some recent results centering on the Kohnert properties of “northeast” diagrams. I will present some conditions for the boundedness and rankedness of a “northeast” Kohnert poset and present a surprising connection between certain minimal elements and key diagrams. There will be a worksheet. This is a joint work with Aram Bingham\, Beth Anne Castellano\, Kimberly Hadaway\, Reuven Hodges\, Yichen Ma\, and Kyle Salois that originated at this year’s GRWC.
URL:https://uwm.edu/math/event/graduate-student-colloquium-alexander-moon/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240920T123000
DTEND;TZID=America/Chicago:20240920T133000
DTSTAMP:20260607T043507
CREATED:20240917T155920Z
LAST-MODIFIED:20240917T155920Z
UID:10016179-1726835400-1726839000@uwm.edu
SUMMARY:Graduate Student Colloquium: Joe Paulson
DESCRIPTION:Introduction to (Partial) Z-Boundaries\nJoe Paulson\nPhD Graduate Student\nUniversity of Wisconsin – Milwaukee \nIn this talk\, I’ll share an abridged story of Z-boundaries and their utility in group theory. Throughout\, we’ll revisit some main characters (compactifications\, homotopy groups\, group actions) and introduce some new ones (group boundaries\, shape invariance). As our story seemingly resolves\, we’ll adapt and refocus on a theory of partial Z-boundaries (ie. Z_n-boundaries) and identify some preliminary results.
URL:https://uwm.edu/math/event/graduate-student-colloquium-joe-paulson/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240906T123000
DTEND;TZID=America/Chicago:20240906T133000
DTSTAMP:20260607T043507
CREATED:20240903T132255Z
LAST-MODIFIED:20240903T132340Z
UID:10016175-1725625800-1725629400@uwm.edu
SUMMARY:Graduate Student Colloquium: Melissa Beerbower
DESCRIPTION:On the Lucky Sets of Fubini Rankings\nMelissa Beerbower\nLoyola University Chicago \nRecall that Fubini rankings of length n are rankings of n competitors allowing for ties. We can say that the number of rankings\, k\, with k less than or equal to n\, is equal to the number of lucky competitors. A lucky competitor is the first to attain its rank. We enumerate Fubini rankings recursively through fixed sets of lucky competitors. Also recall that unit Fubini rankings are Fubini rankings with at most two competitors for each rank. We enumerate unit Fubini rankings through fixed lucky sets. Our enumerations explain twin coefficients for minimum powers in the lucky polynomial of ell-interval Fubini rankings.
URL:https://uwm.edu/math/event/graduate-student-colloquium-melissa-beerbower/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240426T123000
DTEND;TZID=America/Chicago:20240426T133000
DTSTAMP:20260607T043507
CREATED:20240422T160442Z
LAST-MODIFIED:20240422T160442Z
UID:10016159-1714134600-1714138200@uwm.edu
SUMMARY:Graduate Student Colloquium: Alex Moon
DESCRIPTION:Counting Orbits of Defective Parking Functions\nAlex Moon\nPhD Student\nUniversity of Wisconsin-Milwaukee \nParking functions are well-studied objects in combinatorics and representation theory which constitute tuples of preferred parking spots for cars under a linear parking scheme. This talk will generalize to defective parking functions. I will enumerate the orbits of defective parking functions under the action of the symmetric group by characterizing them as nondecreasing tuples and sketching a bijection to standard nondecreasing parking functions. I will also introduce the concept of the conjugate of a nondecreasing parking function in order to simplify the case where the number of cars and spots differ. \nThis is a joint with Pamela E. Harris\, Aaron Ortiz\, Lauren J. Quesada\, Cynthia Marie Rivera Sánchez\, and Dwight A. Williams II.
URL:https://uwm.edu/math/event/graduate-student-colloquium-alex-moon/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
X-TRIBE-STATUS:
GEO:43.0758771;-87.8858312
X-APPLE-STRUCTURED-LOCATION;VALUE=URI;X-ADDRESS=EMS Building Room E495 E495; 3200 N Cramer St. Milwaukee WI 53211 United States;X-APPLE-RADIUS=500;X-TITLE=E495; 3200 N Cramer St.:geo:-87.8858312,43.0758771
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20240419T123000
DTEND;TZID=America/Chicago:20240419T133000
DTSTAMP:20260607T043507
CREATED:20240415T180913Z
LAST-MODIFIED:20240415T180913Z
UID:10016157-1713529800-1713533400@uwm.edu
SUMMARY:Graduate Student Colloquium: Matt McClinton
DESCRIPTION:Harmonize your Fractals\nMatt McClinton\nGraduate Student\nUniversity of Wisconsin-Milwaukee \nThe Sierpinski Gasket (SG) is a known fractal object. A simple observation shows that SG is path connected. Unfortunately\, the infinitely jagged structure of the Gasket prevents these paths from being differentiable. If only there existed a means of smoothing out SG into an object where continuous and differentiable paths existed between pairs of points. As a matter of fact there is! \nI will demonstrate the technique known as “minimizing the graph energy” as described in the late Robert Strichartz’s book “Differential Equations on Fractals”. This technique involves finding the solution to a system of equations where the solution produces a graph that has differentiable paths\, and even better satisfies the Laplacian. Using a homeomorphic mapping defined by Jun Kigami in 1989\, by finding the graph energy minimizing values on level sets of SG\, we produce a fractal object known as the Harmonic Sierpinski Gasket (HSG). \nThis talk is intended for those that are interested in analysis\, algebra\, combinatorics\, topology\, fractal geometry\, and/or graph theory. Any necessary background information will be provided during the talk\, and I will end with some open problems.
URL:https://uwm.edu/math/event/graduate-student-colloquium-matt-mcclinton/
LOCATION:EMS Building\, Room E495\, E495; 3200 N Cramer St.\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Graduate Student Colloquia
ORGANIZER;CN="The Department of Mathematical Sciences":MAILTO:math-staff@uwm.edu
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