Department of

# Mathematics

Seminar Calendar
for events the day of Monday, March 6, 2017.

.
events for the
events containing

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


Monday, March 6, 2017

4:00 pm in 245 Altgeld Hall,Monday, March 6, 2017

#### Stability, Eigenvalues and Index Theorems

###### Jared Bronski (Department of Mathematics, University of Illinois)

4:00 pm in 243 Altgeld Hall,Monday, March 6, 2017

#### Contact embeddings in three dimensions

###### Olguta Buse (Indiana University-Purdue University Indianapolis )

Abstract: We study neighborhoods of transversal knots in contact thee dimensional manifolds. By doing so, we introduce the concepts of capacity and shape for a three dimensional contact manifold $(M, \xi)$ relative to a transversal knot $K$. We will explain the connection with the existing literature and provide our main computation for the shape in the case of lens spaces $L(p,q)$ with a toric contact structure. The main tool used here are rational surgeries which will be explained through their toric interpretations based on the continuous fraction expansions of $p/q$. This is joint work with D. Gay.

5:00 pm in 241 Altgeld Hall,Monday, March 6, 2017

#### Embedding of Heisenberg group in L_1

###### Jeremy and Chris (UIUC)

Abstract: This is an introduction to a series of lectures showing that the Heisenberg group does not embed in (commutative) L_1