Wednesday, September 25, 2019 — 2:00 PM EDT

Title: Improving Implementations of CSIDH

Speaker: Jason LeGrow
Affiliation: University of Waterloo
Room: MC 5417

Abstract: 

I will present on some papers related to implementations of CSIDH [1].

Thursday, September 26, 2019 — 1:00 PM EDT

Title: LP bounds and the addition formula

Speaker: Chris Godsil
Affiliation: University of Waterloo
Room: MC 5479

Abstract:

I will show how we can derive useful bounds on the size of codes and designs, using linear programming and the addition formula.

Thursday, September 26, 2019 — 3:30 PM EDT

Title: Chord diagrams, generating functions, and qft

Speaker: Karen Yeats
Affiliation: University of Waterloo
Room: MC 5417

Abstract:

I'll talk about some joint work with Julien Courtiel where some nice enumerative combinatorics tells us something about how gauge theories are such special quantum field theories.

Friday, September 27, 2019 — 1:00 PM EDT

Title: Submodular function maximization

Speaker: Chaitanya Swamy
Affiliation: University of Waterloo
Room: MC 5501

Abstract:

I will give the introductory talk for this term's topic for the Combinatorial-Optimization Reading group, namely submodular function maximization. Submodular functions arise in diverse contexts in combinatorial optimization.

Friday, September 27, 2019 — 3:30 PM EDT
Carsten Thomassen

Title: Countable weighted graphs with no unfriendly partitions

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