Department of

# Mathematics

Seminar Calendar
for Logic Seminar events the next 2 months of Monday, January 21, 2019.

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events for the
events containing

Questions regarding events or the calendar should be directed to Tori Corkery.
    December 2018           January 2019          February 2019
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1          1  2  3  4  5                   1  2
2  3  4  5  6  7  8    6  7  8  9 10 11 12    3  4  5  6  7  8  9
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30 31


Tuesday, January 22, 2019

1:00 pm in Altgeld Hall,Tuesday, January 22, 2019

#### A Homotopical View of Lascar Groups of First-Order Theories

###### Greg Cousins (Notre Dame)

Abstract: In this talk, we will discuss how the Lascar group of a first-order theory, $T$, can be recovered as the fundamental group(-oid) of a certain space associated to the category of models, $Mod(T)$. We will then discuss some examples illustrating how tools from algebraic topology can be used to compute the Lascar group of a theory. Time permitting, we will discuss generalizations to the context of AECs and questions their higher homotopy. No knowledge of homotopy theory will be assumed. This is joint work with Tim Campion and Jinhe Ye.

Tuesday, January 29, 2019

1:00 pm in 345 Altgeld Hall,Tuesday, January 29, 2019

#### To Be Announced

###### Garret Ervin (Carnegie Mellon)

Tuesday, February 12, 2019

1:00 pm in 345 Altgeld Hall,Tuesday, February 12, 2019

#### To Be Announced

###### Raphaël Carroy (Gödel Research Center for Math. Logic at Univ. of Vienna)

Tuesday, February 19, 2019

1:00 pm in 345 Altgeld Hall,Tuesday, February 19, 2019

#### To Be Announced

###### Forte Shinko (Caltech)

Tuesday, February 26, 2019

1:00 pm in Altgeld Hall,Tuesday, February 26, 2019