Department of

# Mathematics

Seminar Calendar
for events the day of Monday, February 24, 2014.

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events for the
events containing

Questions regarding events or the calendar should be directed to Tori Corkery.
     January 2014          February 2014            March 2014
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                      1
5  6  7  8  9 10 11    2  3  4  5  6  7  8    2  3  4  5  6  7  8
12 13 14 15 16 17 18    9 10 11 12 13 14 15    9 10 11 12 13 14 15
19 20 21 22 23 24 25   16 17 18 19 20 21 22   16 17 18 19 20 21 22
26 27 28 29 30 31      23 24 25 26 27 28      23 24 25 26 27 28 29
30 31


Monday, February 24, 2014

8:00 am in CSL,Monday, February 24, 2014

#### IMSE Hot TIME Symposium: Applied Geometry, Topology and Networks

Abstract: IMSE Hot TIME Symposium: Applied Geometry, Topology and Networks takes place on February 24-25 on campus, featuring Ruth Williams and Frank Sottile as plenary speakers and 20 invited talks by experts from 12 universities and LANL. The details are at https://imse.math.illinois.edu/?page_id=603 - the program is broad and interesting. Join us!

3:00 pm in 145 Altgeld Hall,Monday, February 24, 2014

#### Convexity Theorems for Semisimple Symmetric Spaces

###### Dana Balibanu (Utrecht Math)

4:00 pm in 143 Altgeld Hall,Monday, February 24, 2014

#### Majorana spinors, Minkowski superspace, and supersymmetry

###### Sheldon Katz (Illinois Math)

Abstract: I begin by discussing Majorana (reality) conditions on spinors, completing the description of N=1 super Yang-Mills in dimensions 3,4,6, and 10. I will then switch to the superspace formalism which permits the formulation of supersymmetry globally as an odd distribution, with particular attention to dimension 4.

4:00 pm in 241 Altgeld Hall,Monday, February 24, 2014

#### Dynamics of Panov Planes

###### Chris Johnson (Clemson)

Abstract: Panov planes are copies of the complex plane equipped with a half-translation structure which changes the dynamics of the geodesic flow in the plane. Constructing a Panov plane as the universal cover of a half-translation torus, the dynamics of the flow in some special directions exhibit some very surprising and interesting properties which can be studied by considering actions of affine diffeomorphisms on the torus' first homology group. While these directions are interesting in their own right, they are also closely related to self-similar billiard trajectories in an infinite polygonal billiard table known as the periodic Ehrenfest wind-tree model.

5:00 pm in 241 Altgeld,Monday, February 24, 2014