Date Event Type Event Name Abstract
07/08/2020 REU Colloquium Basics of Video Compression - Understanding how the h.264 video codec works
07/06/2020 REU Colloquium Investigating Students’ Mathematical Reasoning in a Computational Setting: The Case of Python Programming and Counting Problems Computational thinking and activity are increasingly important aspects of scientific and mathematical work. In mathematics education, there is a need to investigate the ways in which students’ computational activity affects how they reason about mathematical concepts. In addition, when solving...
06/19/2020 M.Sc. Presentation Curriculum Adaptation of Transformation Geometry in the Complex Plane If you are interested in attending this presentation, please send an email to Nikki Sullivan - nikki.sullivan@oregonstate.edu - to request Zoom log in details.
06/12/2020 Mathematics Department Awards and Graduation Celebration Please join us this Friday, June 12 from 4-5pm PDT for an online version of the OSU Mathematics Department Awards and Graduation Celebration. The event will take place in Zoom (you can email nikki.sullivan@oregonstate.edu for a link to the event). The event will feature undergraduate and graduate...
06/08/2020 M.Sc. Presentation Implementing Edwards's Algorithm to Compute Veech Groups of Translation Surfaces A translation surface $(X,\omega)$ is a collection of polygons in $\mathbb{R}^2$ together with a set of side-pairing identifications such that identified sides are parallel, equal length and of opposite orientation. There is a natural action of $\text{GL}_2\mathbb{R}$ on the set of all translation...
06/05/2020 M.Sc. Presentation Instability of Mapper-Type Algorithms for Topological Data Analysis Mapper is a tool designed by Singh, Mémoli, and Carlsson for Topological Data Analysis (TDA) that constructs a simplicial complex from a finite subset of a metric space. Due to the varying input parameters of Mapper and the potential Mapper has shown in TDA, questioning its stability is natural. In...
06/04/2020 Ph.D.Defense A Computational Method for Building Spherical Pictures and Theoretic Results from Explicit Constructions Let H be a cyclically-presented group on n generators with a single defining relator. Attempts have been made to classify such groups by their order, their status as a 3-manifold group, and the asphericity status of their presentations. For groups with a defining relator of length 3 these...
06/04/2020 Applied Mathematics and Computation Seminar SIAM PDE online talk by John Ball The AMC Seminar attendees are encouraged to participate in this event organized by the SIAM PDE Activity Group. http://siags.siam.org/siagapde/index.html Thursday June 4th - Sir John Ball (Heriot-Watt University, UK), 11:30 EDT (08:30 PDT) Title: Some energy minimization problems for liquid...
05/29/2020 Applied Mathematics and Computation Seminar A Multiscale Study of the Biot System and the Stefan Problem This presentation will be given online by zoom, with the zoom link sent to the AMC seminar list. Participants interested in viewing should sign up for that list (see AMC Seminar website). ABSTRACT: In this presentation we consider a model for freezing in porous media. Ideally, such a model would...
05/26/2020 Number Theory Seminar On some hypergeometric supercongruence conjectures of Long In the late 1990's, Rodriguez Villegas observed strong structural connections between hypergeometric series arising as periods of certain abelian varieties and modular forms. In particular, he conjectured 14 congruences between truncations of certain hypergeometric series and Fourier coefficients...
05/22/2020 Applied Mathematics and Computation Seminar Rain Calms the Sea This presentation will be given online by zoom, with the zoom link sent to the AMC seminar list. Participants interested in viewing should sign up for that list (see AMC Seminar website). An explanation is proposed for the damping of short ocean gravity waves during rainstorms associated with the...
05/19/2020 Geometry-Topology Seminar Jaccard Filtration and Stable Paths in the Mapper Please note different day: Tuesday, May 19th. Two central concepts from topological data analysis (TDA) are persistence and the Mapper construction. Persistence employs a sequence of objects built on data called a filtration. A Mapper produces insightful summaries of data, and has found widespread...
05/19/2020 Number Theory Seminar Effective Sato-Tate and applications This is the final talk of the academic year in the VaNTAGe series.
05/16/2020 Department Event Oregon Invitational Mathematics Tournament (CANCELLED) Due to concerns over the coronavirus pandemic, Oregon State University has raised its level of response. In consideration of the health of visitors to OSU campus, it is with regret that we must announce that the 2020 Oregon Invitational Mathematics Tournament has been canceled. The Oregon State...
05/15/2020 Applied Mathematics and Computation Seminar Accelerating solvers for nonlinear problems This presentation will be given online by zoom, with the zoom link sent to the AMC seminar list. Participants interested in viewing should sign up for that list (see AMC Seminar website). ABSTRACT: The efficient solution of systems of nonlinear equations is an important tool for the modeling of...
05/12/2020 Computing Veech groups of translation surfaces TBA
05/12/2020 Number Theory Seminar Computing Veech groups of translation surfaces We present our implementation into SageMath of Brandon Edwards' (2017 PhD dissertation) algorithm to compute Veech groups of translation surfaces. We focus on the theoretical background.
05/11/2020 Department Colloquium Sophie Germain's grand plan to prove Fermat's Last Theorem The Oregon State University chapter of the Association for Women in Mathematics invites you to join in celebrating International Women in Mathematics Day with a special colloquium on a famous woman mathematician. Sophie Germain (1776-1831) is the first woman known to have created important new...
05/11/2020 Geometry-Topology Seminar Instability of Mapper-type Algorithms for TDA Mapper is a tool designed by Singh, Mémoli, and Carlsson for Topological Data Analysis (TDA) that constructs a simplicial complex from a finite subset of a metric space. Due to the varying input parameters of Mapper and the potential Mapper has shown in TDA, questioning its stability is natural. In...
05/08/2020 Applied Mathematics and Computation Seminar A Virtual Element Method for Magnetohydrodynamics This presentation will be given online by zoom, with the zoom link sent to the AMC seminar list. Participants interested in viewing should sign up for that list (see AMC Seminar website). The virtual element method (VEM) is a generalization of the classic finite element method (FEM). In the VEM...