Future students

Friday, October 26, 2018 3:30 pm - 3:30 pm EDT (GMT -04:00)

Tutte Colloquium - Jim Geelen

Title: Vertex Minors

Speaker: Jim Geelen
Affiliation: University of Waterloo
Room: MC 5501

Abstract:

I will give an introduction to vertex-minors of graphs. At first sight vertex minors are a bit peculiar but they are closely related to graph minors and possibly even easier to work with.

Thursday, October 25, 2018 3:30 pm - 3:30 pm EDT (GMT -04:00)

Graphs and Matroids Seminar- Gholam Reza Omidi

Title: Some problems on the size Ramsey numbers

Speaker: Gholam Reza Omidi
Affiliation: Isfahan University of Technology
Room: MC 5417

Abstract: For given simple graphs $G_1$ and $G_2$, the size Ramsey number $\hat{R}(G_1,G_2)$ is the smallest positive integer $m$,

Friday, October 26, 2018 1:00 pm - 1:00 pm EDT (GMT -04:00)

CombOpt Reading Group- Zishen Qu

Title:Local Search Guarantees on Facility Location Problems

Speaker: Zishen Qu
Affiliation: University of Waterloo
Room: MC 5479

Abstract: We will show that guarantees can be given on algorithms for the k-median problem based on local search heuristics.

Thursday, October 25, 2018 1:30 pm - 1:30 pm EDT (GMT -04:00)

Algebraic Graph Theory Seminar- Nathan Lindzey

Title: Maximum Independent Sets in Erdos-Ko-Rado Combinatorics

Speaker: Nathan Lindzey
Affiliation: University of Waterloo
Room: MC 6486

Abstract:  We discuss a general algebraic method for characterizing maximum independent sets in graphs that arise in Erdos-Ko-Rado combinatorics, provided the graphs are large enough. 

Written by Institute for Quantum Computing staff

Quantum computers can solve a linear algebra problem faster than classical computers, according to a new study published in Science. The finding proves that constant-depth quantum circuits are more powerful than their classical counterparts, and provides a new sense of how quantum technology will be a key to more powerful computing.

Thursday, October 18, 2018 1:30 pm - 1:30 pm EDT (GMT -04:00)

Algebraic Graph Theory Seminar- Chris Godsil

Title: Graphs of Homomorphisms

Speaker: Chris Godsil
Affiliation: University of Waterloo
Room: MC 6486

Abstract: If X and Y are graphs and f is a function on V (X) taking values in V (Y ), then the graph of
f is the subset formed by the pairs (x; f(x)) for x in V (X).

Wednesday, October 17, 2018 4:00 pm - 4:00 pm EDT (GMT -04:00)

Continuous Optimization Seminar - Steve Vavasis

Title: Tutorial on back-propagation and automatic differentiation

Speaker: Steve Vavasis
Affiliation: University of Waterloo
Room: MC 5479

Abstract: In this presentation, I'll cover the basics of automatic differentiation (AD).

Thursday, October 18, 2018 3:30 pm - 3:30 pm EDT (GMT -04:00)

Graphs and Matroids Seminar

Title: Extending Thomassen’s Theorem to Two Faces

Speaker: Joshua Nevin
Affiliation: University of Waterloo
Room:  MC 5417

Abstract:

Let G be a planar graph and let L be a list-assignment for G in which there is a precolored edge on the outer face, every other vertex on the outer face has a list of size at least 3, and every other vertex in G has a list of size at least 5.