Department of

# Mathematics

Seminar Calendar
for events the day of Monday, September 9, 2019.

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events for the
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More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery.
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Monday, September 9, 2019

3:00 pm in 243 Altgeld Hall,Monday, September 9, 2019

#### Organizational Meeting

3:00 pm in 441 Altgeld Hall,Monday, September 9, 2019

#### Algebraic theories and homotopy theory

###### William Balderrama (UIUC Math)

Abstract: In this talk, I will motivate and introduce algebraic theories as a category-theoretic approach to finite product theories. I will then talk about a well-behaved notion of an infinitary algebraic theory, and the introduction of homotopy-theoretic structure, which can be used to define notions of homology and cohomology for the models of an algebraic theory. This is the first of two talks; the second will use these ideas to produce applications in stable homotopy theory.

5:00 pm in 241 Altgeld Hall,Monday, September 9, 2019

#### What can be in an IGL project on C*-algebras?

###### Chris Linden (UIUC)

Abstract: Report on IGL project in C*-algebras by Chris Linden