The CUNY Probability Seminar is typically held on Tuesdays from 4:15 to 5:15 pm at the CUNY Graduate Center Math Department. The exact dates, times and locations are mentioned below. If you want to talk at the seminar, or want to be added to/removed from the seminar mailing list, then please contact the Seminar Coordinator

*Shirshendu Chatterjee *(shirshendu at ccny dotcuny dotedu)

**Tuesday, February 7, 4:15 PM, Rm. 5417**

Speaker: Christian Benes, Brooklyn College, CUNY

Title: Where Planar Simple Random Walk Loses its Rotational Symmetry

Abstract: We present an explicit local limit theorem for simple random walk in dimensions 1 and 2, valid for all points in the range of the walk. The two-dimensional result allows to obtain a precise description of where and how planar simple random walk loses its approximate rotational symmetry.

**Tuesday, February 21, 4:15 PM, Rm. 5417**

Speaker: Daniel Ahlberg, IMPA, Brazil

**Tuesday, February 28, 4:15 PM, Rm. 5417**

Speaker: Warren Tai, Graduate Center, CUNY

Title: TBA

**Tuesday, March 7, 4:15 PM, Rm. 5417**

Speaker: Guillaume Barraquand, Columbia University

Title: TBA

**Tuesday, March 14, 4:15 PM, Rm. 5417**

Speaker: Victor de la Peña, Columbia University, Department of Statistics

Title: On Boundary Crossing By Stochastic Processes

Abstract: In this talk, we introduce an approach to bound the expected time for stochastic to cross a boundary. The approach can be thought as a direct extension of the concept of boundary crossing of non-random functions to that of stochastic processes. It can also be viewed as an extension of Wald’s equations in sequential analysis to the case of stochastic processes with arbitrary dependence structure.

**Tuesday, March 21, 4:15 PM, Rm. 5417**

Speaker: Kei Kobayashi, Fordham University

Title: TBA

**Tuesday, March 28, 4:15 PM, Rm. 5417**

Speaker: Konstantin Tikhomirov, Princeton University

Title: TBA

**Tuesday, April 4, 4:15 PM, Rm. 5417**

Speaker: Martin Zerner, University of Tuebingen

Title: TBA

**Tuesday, May 2, 4:15 PM, Rm. 5417**

Speaker: Matthew Junge, Duke University

Title: TBA

**Tuesday, May 9, 4:15 PM, Rm. 5417**

Speaker: Tobias Johnson, Courant Institute, NYU

Title: TBA