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Wednesday, June 13, 2012 1:00 pm - 2:30 pm EDT (GMT -04:00)

Constraint Satisfaction seminar

Ross Willard, Pure Mathematics Department, University of Waterloo

"Solving group constraints - III"

This is the third of several lectures in which I will describe an
algorithm for problems whose constraints are cosets of subgroups of powers of a fixed group.

Please note time.

Wednesday, June 13, 2012 3:40 pm - 5:00 pm EDT (GMT -04:00)

Computability learning seminar

Chris Conidis, Pure Mathematics Department, University of Waterloo

"The Complexity of Ascendant Sequences in Locally Nilpotent Groups"

We will give a computably enumerable construction of ascendant sequences in locally nilpotent groups via P. Hall's Collection Process for nilpotent groups.

Thursday, June 14, 2012 1:00 pm - 2:00 pm EDT (GMT -04:00)

Student Algebra seminar

Robert Garbary, Pure Mathematics Department, University of Waterloo

"More on localisations"

We will continue to discuss the relationship between basic open subsets of Spec(R) and localisations of R.  Then we describe how to view R as the ring of functions on Spec(R).

Thursday, June 14, 2012 3:00 pm - 5:00 pm EDT (GMT -04:00)

Special colloquium

Jason Bell, Simon Fraser University

"The Dixmier-Moeglin equivalence"

Abstract: The primitive ideals of an algebra form an important subcollection of its prime ideals, and they play a fundamental role in understanding its representations.

Tuesday, June 19, 2012 1:30 pm - 1:30 pm EDT (GMT -04:00)

Student Number Theory seminar

Shuntaro Yamagishi, Pure Mathematices Department, University of Waterloo 

"Circle Method on Waring's Problem (Minor Arcs)"

A classic application of Hardy-Littlewood circle method is the Waring's problem. This talk is meant to be an introduction to circle method. I will cover the minor arcs in the second week.

Tuesday, June 19, 2012 2:30 pm - 2:30 pm EDT (GMT -04:00)

Zariski Geometries working seminar

Omar Leon Sanchez, Pure Mathematics Department, University of Waterloo

"Examples of Zariski Structures - Part II"

In the following two weeks we will see why the following are examples of Zariski structures:

Wednesday, June 20, 2012 1:00 pm - 1:00 pm EDT (GMT -04:00)

Geometry working seminar

Benoit Charbonneau & Sprio Karigiannis, Pure Mathematics Department, University of Waterloo.

Talk 1:
"Flow of connections within a complex gauge equivalence class" (Benoit Charbonneau)

Given a vector bundle on a Kähler manifold, and a connection on this vector bundle, one can hope to minimize the part of the curvature parallel to the Kähler form following a heat flow. We will explore the details of this construction.

Wednesday, June 20, 2012 3:40 pm - 3:40 pm EDT (GMT -04:00)

Computability learning seminar

Chris Conidis, Pure Mathematics Department, University of Waterloo

"The Complexity of Ascendant Sequences in Locally Nilpotent Groups - Part II"

We will give a computably enumerable construction of ascendant sequences in locally nilpotent groups via P. Hall's Collection Process for nilpotent groups.

Tuesday, June 26, 2012 2:30 pm - 2:30 pm EDT (GMT -04:00)

Zariski Geometries working seminar

Peter Sinclair, Pure Mathematics Department, University of Waterloo

“Pre-Smoothness”

Abstract
In this talk, we will introduce a broader definition of pre-smoothness for general constructible sets, and discuss some properties of pre-smooth sets. Time permitting, we will also look at the specific case when the pre-smooth set is an algebraic curve.

Wednesday, June 27, 2012 1:00 pm - 1:00 pm EDT (GMT -04:00)

Geometry working seminar

Alejandra Vicente-Colmenares & Brad Dart, Pure Mathematics Department University of Waterloo