Department of

Mathematics

Seminar Calendar
for Graduate Student Homotopy Seminar events the year of Wednesday, September 13, 2017.

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More information on this calendar program is available.
Questions regarding events or the calendar should be directed to Tori Corkery.
     August 2017           September 2017          October 2017
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Monday, September 11, 2017

3:00 pm in 141 Altgeld Hall,Monday, September 11, 2017

What is tmf

Ningchuan Zhang   [email] (UIUC)

Abstract: In short, Topological Modular Forms (tmf) is a “universal elliptic cohomology theory”. More precisely, it is the global section of a sheaf of $E_\infty$-ring spectra over the moduli stack of (generalized) elliptic curves. In this talk, I’ll introduce tmf and sketch the construction of it (or really this sheaf of $E_\infty$ ring spectra). If time allows, I’ll also explain its relationship to classical modular forms.

Monday, September 18, 2017

3:00 pm in 141 Altgeld Hall,Monday, September 18, 2017

Framed Cobordism and Stable Homotopy Groups

Brian Shin   [email] (UIUC)

Abstract: I will introduce the notion of framed cobordism describe its connection to the homotopy groups of spheres. Using this connection, I will calculate several of these groups using geometry.

Monday, September 25, 2017

3:00 pm in 141 Altgeld Hall,Monday, September 25, 2017

An Invitation to Motivic Homotopy Theory

Daniel Carmody   [email] (UIUC)

Abstract: In this talk I’ll introduce some of the basic constructions in motivic homotopy theory while trying to give motivations for some of the more complex definitions. This will be largely based on Dan Dugger’s $Universal$ $Homotopy$ $Theories$ paper.