Department of

# Mathematics

Seminar Calendar
for events the day of Monday, February 20, 2017.

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events for the
events containing

More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery.
     January 2017          February 2017            March 2017
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  7             1  2  3  4             1  2  3  4
8  9 10 11 12 13 14    5  6  7  8  9 10 11    5  6  7  8  9 10 11
15 16 17 18 19 20 21   12 13 14 15 16 17 18   12 13 14 15 16 17 18
22 23 24 25 26 27 28   19 20 21 22 23 24 25   19 20 21 22 23 24 25
29 30 31               26 27 28               26 27 28 29 30 31



Monday, February 20, 2017

4:00 pm in 245 Altgeld Hall,Monday, February 20, 2017

#### Stuck in Traffic

###### Richard Sowers (Department of Mathematics, University of Illinois)

Abstract: Used Uber or Lyft lately? Been in a traffic jam lately? There is an increasing amount of interest and data in making 'cities' and 'mobility' smart. We take a look at some data and data reduction problems which we have been looking at for the past several months. We outline some current and new challenges. This is work with Professor Dan Work of Civil and Environmental Engineering, the PI4 program, and the IGL program.

5:00 pm in 241 Altgeld Hall,Monday, February 20, 2017

#### Quasidiagonality of Nuclear C*-Algebras

###### Chris Linden (UIUC Math)

Abstract: Tikuisis, White, and Winter have shown that faithful traces on separable, nuclear C*-algebras which satisfy the UCT are quasidiagonal. As a corollary, the reduced group C*-algebra of an amenable group is quasidiagonal. I will discuss Schafhauser's recent proof of this theorem using the extension theory of C*-algebras.