UWO Mathematics Calendar

Week of February 01, 2009
Monday, February 02

Geometry and Topology

Time: 15:30
Room: MC 107
Speaker:
Title: No seminar

 

Noncommutative Geometry

Time: 15:30
Room: MC 106
Speaker: Sheldon Joyner (Western)
Title: Quantized Theta Functions I

In this informal lecture series we discuss Manin's work on quantum versions of theta functions

 
Tuesday, February 03

Stable Homotopy

Time: 14:00
Room: MC 107
Speaker: Enxin Wu (Western)
Title: Spanier-Whitehead Category and Adams' Stable Homotopy Category

 

Analysis Seminar

Time: 15:30
Room: MC 108
Speaker: Gordon Sinnamon (Western)
Title: Bootstrapping and the Fourier Transform

Techniques from the theory of positive integral operators are applied to give a new method for generating weighted Fourier inequalities.

 
Wednesday, February 04

Colloquium

Time: 15:30
Room: MC 106
Speaker: Krzysztof Kurdyka (Université de Savoie)
Title: When injectivity of selfmaps implies surjectivity ?

It is known  that injective polynomial maps Cn -> Cn are surjective. In fact a theorem of Ax (1968) states that this is also true for injective regular maps X -> X, where X is an algebraic (possibly singular) variety over algebraically closed field of char =0. The same problem over the field of reals is more difficult. Bialynicki-Birula and Rosenlicht (1962) have proved that injective polynomial maps Rn -> Rn are surjective. But the general case of algebraic injective maps X-> X , where  X is real algebraic (possibly singular), was solved only recently by the author. The method is essentially topological (Borel-Moore homology), based on a fine decomposition of real algebraic sets into so called arc-symmetric components.

 
Thursday, February 05

Noncommutative Geometry

Time: 15:00
Room: MC 108
Speaker: Masoud Khalkhali (Western)
Title: Introduction to the classical theory of theta functions

 
Friday, February 06

Algebra Seminar

Time: 15:30
Room: MC 106
Speaker: Emre Coskun (Michigan State University)
Title: The moduli space of representations of Clifford algebras