About us

Welcome to the home page of the Mathematics Graduate Student Organization (MGSO) at Texas A&M University in College Station. The purpose of this organization is to encourage communication among students, faculty, and staff, and contribute to a rich social life in the department through cultural and scientific dialogue. We would also like to provide an environment where students in the mathematics department can practice their presentation skills as well as view the techniques of others. It is our goal to be a source of support and information for all graduate students.

The main activity of the MGSO is the Graduate Student Seminar. This seminar is for grad students, (largely) by grad students: Volunteer to give a talk!

Seminar: Spring 2020, Wednesdays, Blocker 628, 4:00-4:50 PM

Next Talk

Speaker:   Tolulope Oke  

Title:   How contracting Homotopy helps to determine the Lie algebra structure on Hochschild cohomology

Time / Date:   4:00 - 5:00 , February 19


We are all familiar with when two chain maps f,g between two chain complexes C and D are homotopic i.e there is a chain homotopy s from C to D[1] such that f-g=ds+sd. There is a similar notion of contracting homotopy between chain complexes. Hochschild cohomology possesses a cup product and a Lie bracket of degree -1. I will present how the contracting homotopy technique is used to determine the Lie structure on Hochschild cohomology for certain class of algebras.