### DIMACS - Graduate Student Combinatorics Seminar

Title: Symmetric Designs

Speaker: **Yael Davidov**, Rutgers University

Date: Wednesday, April 18, 2018 12:15pm

Location: Hill Center, Room 705, Rutgers University, Busch Campus, Piscataway, NJ

Abstract:
This talk will be about symmetric designs. Symmetric designs are mathematical objects that include but are not limited to finite projective planes and difference sets. I will define symmetric designs, give some cool examples, and provide an outline of a proof of the Bruck-Ryser-Chowla Theorem about the possible parameters of a design which uses some fun facts from algebra (quadratic forms) and number theory.

See: http://sites.math.rutgers.edu/~yb165/GCS.html