Department of

# Mathematics

Seminar Calendar
for events the day of Monday, September 26, 2016.

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events for the
events containing

Questions regarding events or the calendar should be directed to Tori Corkery.
     August 2016           September 2016          October 2016
Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa   Su Mo Tu We Th Fr Sa
1  2  3  4  5  6                1  2  3                      1
7  8  9 10 11 12 13    4  5  6  7  8  9 10    2  3  4  5  6  7  8
14 15 16 17 18 19 20   11 12 13 14 15 16 17    9 10 11 12 13 14 15
21 22 23 24 25 26 27   18 19 20 21 22 23 24   16 17 18 19 20 21 22
28 29 30 31            25 26 27 28 29 30      23 24 25 26 27 28 29
30 31


Monday, September 26, 2016

11:00 am in 141 Altgeld Hall,Monday, September 26, 2016

#### Excisive bivariant theories

###### David Gepner (Purdue)

Abstract: We construct stabilizations of infinity-topoi via bivariant theories which are excisive in the sense that they admit twisted Thom isomorphisms. This can be used to recover global forms of cohomology theories such as TMF and variants thereof. This is joint work with Thomas Nikolaus.

4:00 pm in 245 Altgeld Hall,Monday, September 26, 2016

#### Some applications of the container method in discrete geometry

###### Jozsef Balogh (Department of Mathematics, University of Illinois)

Abstract: The container method proved to be applicable in several areas of combinatorics. I will discuss some new applications. 1. We consider a problem of Erdos about point sets in the plane in (almost) general position. 2. We discuss epsilon-nets, where the underlying set is a subset of points in the plane, and the ranges are collinear point tuples. Though we have not completely solved any of the problems, maybe our improvements are of some interests. It is joint work with Jozsef Solymosi.

5:00 pm in 241 Altgeld Hall,Monday, September 26, 2016

#### Quantum value of classical games

###### Marius Junge (UIUC)

Abstract: Following Scpara and Dailleux we will prove a parallel repetition for the quantum value of free games.