Dept Banner
Dept Banner

Calendar - Weekly View

Download as iCal file

Graduate Student Combinatorics Seminar Sponsored by DIMACS

An application of topology to a hypergraph problem

Aditya Potukuchi, Rutgers University

Location:  Hill GSL
Date & time: Wednesday, 06 December 2017 at 12:10PM - 1:10PM

Abstract: The chromatic number of the Kneser graph (conjectured in 1955) was a seemingly difficult open problem until it was solved by Lovasz in 1978 by using quite non-trivial ideas from topology. Using a bit of geometry, Barany (1978) turned this into an extremely short (yet non-trivial!) proof. The main idea of behind talk is to try and understand at least some of the power that is to be gained by using topological ideas to solve problems that seemingly stem (purely!) from combinatorics. In particular, the paper that will be used for this attempt is a paper by Alon-Frankl-Lovasz, who generalize Lovasz's earlier proof to hypergraphs

Contact Us

HillCenter small

Department of Mathematics

Department of Mathematics
Rutgers University
Hill Center - Busch Campus
110 Frelinghuysen Road
Piscataway, NJ 08854-8019, USA

Phone: +1.848.445.2390
Fax: +1.732.445.5530