Mathematics Colloquium

All colloquia are on Fridays at 4:00 pm in Van Vleck B239, unless otherwise indicated.

Fall 2016

date	speaker	title	host(s)
September 9
September 16	Po-Shen Loh (CMU)	TBA	Ellenberg
September 23	Gheorghe Craciun (UW-Madison)	TBA	Street
September 30	Akos Magyar (University of Georgia)	Geometric Ramsey theory	Cook
October 7	Mark Andrea de Cataldo (Stony Brook)	TBA	Maxim
October 14	Ling Long (LSU)	TBA	Yang
October 21	No colloquium this week
October 28	Linda Reichl (UT Austin)	TBA	Minh-Binh Tran
November 4	Steve Shkoller (UC Davis)	TBA	Feldman
Monday, November 7 at 4:30 (Distinguished lecture)	Gaven Martin (New Zealand Institute for Advanced Study)	Siegel's problem on small volume lattices	Marshall
November 11	Reserved for possible job talks
November 18	Reserved for possible job talks
November 25	Thanksgiving break
December 2	Reserved for possible job talks
December 9	Reserved for possible job talks

Spring 2017

date	speaker	title	host(s)
January 20	Reserved for possible job talks
January 27	Reserved for possible job talks
February 3
February 6 (Wasow lecture)	Benoit Perthame (University of Paris VI)	TBA	Jin
February 10	No Colloquium
February 17
February 24
March 3	Ken Bromberg (University of Utah)		Dymarz
Tuesday, March 7, 4PM (Distinguished Lecture)	Roger Temam (Indiana University)		Smith
Wednesday, March 8, 2:25PM	Roger Temam (Indiana University)		Smith
March 10	No Colloquium
March 17
March 24	Spring Break
Wednesday, March 29 (Wasow)	Sylvia Serfaty (NYU)	TBA	Tran
March 31	No Colloquium
April 7	Hal Schenck		Erman
April 14	Wilfrid Gangbo		Feldman & Tran
April 21
April 28	Thomas Yizhao Hou	TBA	Li

Abstracts

September 30: Akos Magyar (University of Georgia)

Title: Geometric Ramsey theory

Abstract: Initiated by Erdos, Graham, Montgomery and others in the 1970's, geometric Ramsey theory studies geometric configurations, determined up to translations, rotations and possibly dilations, which cannot be destroyed by finite partitions of Euclidean spaces. Later it was shown by ergodic and Fourier analytic methods that such results are also possible in the context of sets of positive upper density in Euclidean spaces or the integer lattice. We present a new approach, motivated by developments in arithmetic combinatorics, which provide new results as well new proofs of some classical results in this area.