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Jun

04

2020

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 crystals

Registration (required, cost-free) and details: https://siam.zoom.us/webinar/register/WN_wShvDipBQw6WafNN6QO5wg

Jun

04

2020

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 classifications are nearly complete, with only two groups, H(9,4) and H(9,7), representing outstanding cases in each classification. We complete the asphericity classification for the presentations of these two groups and show that H(9,4) is not a 3-manifold group.

Jun

05

2020

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 this talk, we begin by defining a machine learning technique known as clustering and then provide a definition of the Mapper algorithm. Following this, we outline a measure of instability of the Mapper algorithm proposed by Belchí, Brodzki, Burfitt, and Niranjan.

Jun

08

2020

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 surfaces. The subgroup of orientation-preserving elements of the stabilizer of $(X,\omega)$ under this action is called the Veech group, denoted $\text{SL}(X,\omega)$.

Jun

19

2020

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.

The Daily Barometer featured our Virtual MSLC and some of the mathematics faculty involved in its running in a recent article. Read the article here.

Patrick Flynn (BS Mathematics & Physics ’18), a Ph.D. student of applied mathematics at Brown University and Gregory Mirek Brandt (BS Mathematics & Physics ’18), a Ph.D. student of astrophysics at the University of California Santa Barbara are awarded 2020 NSF Graduate Research Fellowships. Read about them in this IMPACT article.

Professor David Pengelley presented "Sophie Germain's Grand Plan to Prove Fermat's Last Theorem" on May 11, 2020, via Zoom. Sponsored by the Oregon State University student chapter of the Association for Women in Mathematics (AWM), and introduced by Branwen Purdy, President of the AWM student chapter. The audience was primarily OSU Mathematics faculty and graduate students, and external guests Dora Musielak and Dominic Klyve. Abstract: The Oregon State University chapter of the Association for Women in Mathematics invites you to join in celebrating International Women in Mathematics Day with...