How Does the Leopard Get Their Spots? Bill Langhoff University of Wisconsin-Milwaukee MS Graduate Student “In his 1952 paper "The Chemical Basis of Morphogenesis", Alan Turing described a mathematical model for how spatial patterns could arise out of a homogeneous... Read More
Multistationarity in Biochemical Reaction Networks Dr. Maya Mincheva Northern Illinois University Associate Professor “Multistationarity is defined as the existence of several positive equilibria of an ordinary differential equations model. Multistationarity is a required property of biological switches - reaction networks... Read More
Diffusion Approximations and Optimal Control of Queueing Systems in Heavy-Traffic Ananda Weerasinghe Iowa State University Professor of Mathematics “The method of diffusion approximations provides a powerful tool to analyze complex queueing systems under ``heavy traffic conditions.’’ We first introduce such... Read More
Some Questions in Harmonic Analysis Involving Curvature Betsy Stovall University of Wisconsin-Madison Assistant Professor of Mathematics “We will describe some open and recently solved questions in Harmonic Analysis where curvature plays a crucial role. In particular, we will discuss how... Read More
Due to weather related issues, this seminar has been cancelled and rescheduled from April 16 to its current date– Wednesday, April 18 at 2:00PM. We apologize for any inconveniences. The Visual Boundary of Hyperbolic Free-By-Cyclic Groups Ms. Emily Stark Technion-Israel... Read More
Orthogonal Abelian Cartan Subalgebra Decompositions of Classical Lie Algebras Over Finite Commutative Rings Songpon Sriwongsa University of Wisconsin-Milwaukee PhD Graduate Student “Orthogonal decompositions of classical Lie algebras over the complex numbers of types A, B, C and D were studied... Read More
Wiener's Lemma and Applications Qiyu Sun University of Central Florida Professor of Mathematics “The classical Wiener's lemma states that if f(x) is a function with an absolutely convergent Fourier series, which nowhere vanishes for real arguments, 1/f(x) has an absolutely... Read More
Due to unforeseen consequences, this defense has been cancelled and moved from April 13 to its current date-- Monday, April 23 at 1:00PM. We apologize for any inconveniences. A Climatology of Extreme South American Andean Cold Surges Kevin Prince University... Read More
Optimal Control of Energy Production in a Market with Emission Derivatives Leonhard Kunczik University of Wisconsin-Milwaukee MS Graduate Student “With a growing awareness for preserving the environment, governments started to regulate the greenhouse gas emissions of energy producers by implementing... Read More
Optimal Deductibles—A Theoretical Analysis from an Insured Perspective Alexander Kreienbring University of Wisconsin-Milwaukee MS Graduate Student “A stop-loss policy as a tool for protection against a large loss is one of the most common insurance forms. For fixed premiums and... Read More
The Influence of Vertical Advection Discretization in WRF-ARW Model on Capping Inversion Representation in Warm-Season, Thunderstorm Supporting Environments David Nevius University of Wisconsin-Milwaukee MS Graduate Student "This study evaluates forecasts of capping inversions and thermodynamic variables for believed areas of... Read More
Nonmanifold Manifolds! Steven Ferry Rutgers University Professor Emeritus of Mathematics “We describe the construction of a collection of compact "n-manifolds" modeled on spaces other than R^n. These spaces provide counterexamples to a well-known conjecture of Bing-Borsuk. Both results and open... Read More
Fitting a Complex Markov Model for Firm and Market Productivity Julia Valder University of Wisconsin-Milwaukee MS Graduate Student “There is a model in economics that models firm and market productivity as Markov Chains. But estimating the transition matrix for a... Read More
Exact Sampling and Prefix Distributions Sebastian Oberhoff University of Wisconsin-Milwaukee MS Graduate Student “In this talk we'll discuss means to draw exact samples without incurring any numerical error. In the context of continuous random variables this leads naturally to so... Read More
Numerical Solutions of Fractional Nonlinear Advection-Reaction-Diffusion Equations Sophia Vorderwuelbecke University of Wisconsin-Milwaukee MS Graduate Student “In this thesis non-linear differential equations containing advection, reaction and diffusion terms are solved numerically, where the diffusion term is modelled by a fractional derivative.... Read More
Harmonic Functions in Flat-Ring Coordinates Lijuan Bi University of Wisconsin-Milwaukee PhD Graduate Student “We will derive expansions for afundamental solution of the Laplace's equation in flat-ring coordinates in three-dimensional Euclidean space. These expansions are in terms of harmonic functions in... Read More
Maximal Subgroups in Direct Products of Groups Dr. Dandrielle Lewis University of Wisconsin-Eau Claire Associate Professor of Mathematics “Given a direct product of groups, G and H, and information on the subgroups of G and H, what can one say... Read More
Calibration of a Stochastic Price Model for American Electricity Markets Oliver Meister University of Wisconsin-Milwaukee MS Graduate Student “This thesis discusses models for electricity spot prices from the Midwestern American and Manitoba market. The models are based on experiences in... Read More
Isolating Secular Signals in Observations and Climate Models Using M-SSA Based Wiener Filtering Christian Grimm University of Wisconsin-Milwaukee MS Graduate Student "In this thesis, Wiener filtering of gridded surface-temperature time series from observations and climate model simulations is performed by... Read More
The Game of NIM and Dots and Boxes Adam Buck University of Wisconsin-Milwaukee PhD Graduate Student “We will discuss games of perfect information. I will share some trivia about popular games (Chess, Checkers, Connect Four, Mancala, and Go). We will... Read More
A Spherical Maximal Function Along the Primes Dr. Theresa Anderson University of Wisconsin-Madison NSF PostDoc “Many problems at the interface of analysis and number theory involve showing that the primes, though deterministic, exhibit random behavior. The Green-Tao theorem stating that... Read More