# Welcome to Combinatorics and Optimization

Spring 2019 Undergraduate Research Assistantship Program (URA)Applications for the Spring 2019 program are now closed.

Tutte's Distinguished Lecture Series

The very successful Tutte's 100th Distinguished Lecture Series has now completed. That success has led to a Tutte Distinguished Lecture once per term. The next lecture will happen in the Spring term.

*Recordings of occurred talks are all available on C&O's YouTube Channel

Grad Studies: Fall 2019 applications now open

1. Oct. 7, 2019Fall 2019 convocation

9 M.Math. and 6 Ph.D. C&O students will be awarded their degrees at the Fall 2019 convocation ceremonies.

2. Sep. 30, 2019C&O alumnus’ Biotech company wins at Velocity pitch competition

Isaac Ellmen (BMath ’19) and his co-founder Danielle Rose (BSc ‘19, University of Guelph) were one of the recipients of the grand prize of direct equity investments worth $50,000 in the Velocity Fund Competition in Toronto on September 19, 2019. SquidBio was started in November of 2018 and later joined Velocity Science. 3. Sep. 21, 2019Three C&O professors are awarded NSERC Discovery Accelerator Supplements Professors David Gosset, Luke Postle and Laura Sanita will receive$120,000 supplements to their NSERC Discovery Grants.

1. Oct. 24, 2019Algebraic Graph Theory Seminar - Xiaohong Zhang

Title: Perfect state transfer on Hadamard diagonalizable graphs

 Speaker: Xiaohong Zhang Affiliation: University of Waterloo Room: MC 5479

Abstract:

A (weighted) graph whose Laplacian matrix is diagonalizable by a Hadamard matrix is said to be Hadamard diagonalizable.

2. Oct. 24, 2019Algebraic Combinatorics Seminar - John Machacek

Title: Boundary measurement and sign variation in real projective space

 Speaker: John Machacek Affiliation: York University Room: MC 5417

Abstract:

3. Oct. 24, 2019Graphs and Matroids Seminar - Rose McCarty

Title: Sublinear separators in intersection graphs of convex shapes

 Speaker: Rose McCarty Affiliation: University of Waterloo Room: MC 5501

Abstract:

A balanced separator of an n-vertex graph is set of vertices whose deletion leaves only components of size at most 2n/3.

All upcoming events