Events - 2012

Tuesday, March 27, 2012 — 3:30 PM EDT

Speaker:

William Simmons, UIC - University of Illinois at Chicago

Monday, March 26, 2012 — 4:00 PM EDT

Speaker:

Charles Doran, University of Alberta

Friday, March 23, 2012 — 3:30 PM EDT

Speaker:

Ken Davidson, Pure Mathematics Department, University of Waterloo

Thursday, March 22, 2012 — 2:00 PM EDT

Speaker:

Colin Roberts, Pure Mathematics, University of Waterloo

Computing group cohomology using spectral sequences abstract:

We will begin by recalling the “down-to-earth” computation of the cohomol- ogy groups of a cyclic group with coefficients in Z from an earlier talk. Then we will show how the Lyndon / Hochschild - Serre spectral sequence can be used to obtain the known result.
Time permitting we will show how the same technique can be used to compute the cohomology groups of a dihedral group with coefficients in Z.

Wednesday, March 21, 2012 — 3:30 PM EDT

Speaker:

Cheol-Hyan Cho, Seoul National University

Lagrangian Floer homology and toric oribfolds abstract:

For toric manifolds, Lagrangian Floer theory of its torus fibers has deep relations to quantum cohomology, and mirror symmetry, where the mirror is described by LG superpotential W. We will give gentle introduction on this field, and discuss the extension to the case of toric orbifolds.

Friday, March 16, 2012 — 3:30 PM EDT

Speaker:

Jason Bell, Simon Fraser University

Thursday, March 15, 2012 — 3:30 PM EDT

Speaker:

Matthew Harrison-Trainor, Pure Mathematics
University of Waterloo

A low2 model of RT2 abstract:

We give a proof of Cholak, Jockush, and Slaman that there is an ω-model of RT2 consisting entirely of low2 sets.

Thursday, March 15, 2012 — 3:30 PM EDT

Speaker:

Maysum Panju, Pure Mathematics, University of Waterloo

Tuesday, March 6, 2012 — 3:30 PM EST

Speaker:

Spiro Kargiannis, Pure Mathematics Department, University of Waterloo

Gauge Theory and Calibrated Geometry: On Tian's 2000 Annals paper, Part II abstract:

I will go through Chapter 2 of Tian's paper in detail, on Price's monotonicity formula, Uhlenbeck's curvature estimates, and singular Yang-Mills connections.

Thursday, February 16, 2012 — 3:30 PM EST

Speaker:

Omar Leon Sanchez, Pure Mathematics, University of Waterloo

Abstract:

One of the most interesting applications of (algebraic) Galois theory, and perhaps why it all started, is that it translates the problem of solving polynomials by radicals to group-theoretic questions (in which we sometimes have an easier way to find an answer, e.g. finite groups).

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