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Events by date

Tuesday, March 24, 2015

Tuesday, March 24, 2015 — 1:00 PM EDT

Jason Bell, Department of Pure Mathematics, University of Waterloo

"Approximate Groups: IX"

We continue to follow van den Dries’ Seminaire Bourbaki article entitled "Approximate Groups [after Hrushovski, and Breuillard, Green, Tao]". The subject involves the interaction of additive combinatorics and model theory.
 

Tuesday, March 24, 2015 — 2:30 PM EDT

Ian Payne, Department of Pure Mathematics, University of Waterloo

“A CSP algorithm and some work towards a better one”

Tuesday, March 24, 2015 — 3:30 PM EDT

Michael Deveau, Department of Pure Mathematics

"Weak König's Lemma over RCA_0"

Since the addition of Konig's Lemma to RCA_0 presented last time proved to be too strong, we will next investigate the addition of Weak Konig's Lemma to RCA_0. To show that this will have strength strictly between RCA_0 and ACA_0, we will spend some time discussing the PA degrees, including an important application of the Low Basis Theorem.

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