Department of

# Mathematics

Seminar Calendar
for events the day of Friday, February 20, 2015.

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events for the
events containing

Questions regarding events or the calendar should be directed to Tori Corkery.
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Friday, February 20, 2015

4:00 pm in 241 Altgeld Hall,Friday, February 20, 2015

#### Introduction to Cobordism Theory

###### Ningchuan Zhang (UIUC Math)

Abstract: In this talk, I will introduce some basic notions in cobordism theory. The focus of this talk will be unoriented cobordism and Pontrjagin-Thom construction. If time permits, I will also talk about framed cobordism and its relation to stable homotopy groups of spheres.

4:00 pm in 345 Altgeld Hall,Friday, February 20, 2015

#### Keisler Measures

###### Santiago Camacho (UIUC)

Abstract: One of the results of the Distal paper by Simon states that generically stable measures are smooth in Distal theories. We will give an introduction to Keisler measures in particular what does it mean to be smooth and what does it mean to be generically stable. We will show that in a general setting smooth measures are generically stable, thus Simon's result implies that Distal theories are those in which this notions coincide.

4:00 pm in 147 Altgeld Hall,Friday, February 20, 2015

#### Smith normal forms of some combinatorial matrices

###### Alexander Miller   [email] (UIUC Math)

Abstract: I will write down some results and conjectures about Smith normal forms of certain combinatorial matrices over integer polynomials.