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Texas A&M University

Events for 02/10/2020 from all calendars

Geometry Seminar

iCal  iCal

Time: 3:00PM - 4:00PM

Location: BLOC 628

Speaker: Yordanka Kovacheva , University of Maryland

Title: Explicit expression of the Suslin-Voevodsky's isomorphism for quasi-projective variety

Abstract: The Suslin-Voevodsky isomorphism relates finite etale covers of varieties with singular (Suslin) homology of varieties. I would give an explicit way to calculate this isomorphism in terms of functions on curves using Artin reciprocity and Kummer/Weil pairing. I will also give a geometric interpretation of the Weil pairing and relate the Tame and Weil symbols.

Working Seminar on Quantum Computation and Quantum Information

iCal  iCal

Time: 3:30PM - 4:30PM

Location: BLOC 506A

Speaker: Andrew Nemec, TAMU CS

Title: Quantum Error Correction

Students Working Seminar in Number Theory

iCal  iCal

Time: 4:00PM - 5:00PM

Location: Bloc605ax

Speaker: Wei-Lun Tsai, Texas A&M University

Title: Prime number theory--from GL(2) to GL(1)

Abstract: In this talk, I will explain how to use the Fourier expansion for the non-holomorphic Eisenstein series to show that the zeta function is non-vanishing on the 1-line.

Spectral Theory Reading Seminar

iCal  iCal

Time: 4:10PM - 5:00PM

Location: BLOC 624

Speaker: Petr Naryshkin, Texas A&M University

Title: Floquet Theory I

Abstract: I will present Chapter 1 of "The spectral theory of periodic differential equations" by M. S. P. Eastham.


iCal  iCal

Time: 6:00PM - 7:00PM

Location: BLOC 220

Speaker: Patricia Alonso Ruiz, Texas A&M University

Title: Measuring a sponge: how to formulate the isoperimetric problem in fractals

Abstract: The yearly budget of a ranch owner allows him to purchase one mile of fence to delimit a piece of land for the cattle to graze. What shape will provide the largest possible space for the cattle? This question is known as the isoperimetric problem, which consists in finding among all sets with the same perimeter the one that maximizes its area. The problem can be posed in any dimension, and in the usual Euclidean space its solution is known to be the circle or, more generally, a ball. But what if our ambient space is rather porous, like a sponge or a lung, something "fractal"? To formulate the isoperimetric problem we need good notions of area and perimeter, but the standard Euclidean ones become useless here. So, how can we measure the area and the perimeter of a piece of sponge? In this talk we will present the Hausdorff measure and outline a newly developed concept of perimeter as the natural candidates to make sensible measurements in fractal sets.