### TBA by Adrien Saumard

- Series
- Stochastics Seminar
- Time
- Thursday, April 6, 2023 - 15:30 for 1 hour (actually 50 minutes)
- Location
- ONLINE
- Speaker
- Adrien Saumard – ENSAI and CREST – adrien.saumard@ensai.fr

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- Series
- Stochastics Seminar
- Time
- Thursday, April 6, 2023 - 15:30 for 1 hour (actually 50 minutes)
- Location
- ONLINE
- Speaker
- Adrien Saumard – ENSAI and CREST – adrien.saumard@ensai.fr

- Series
- Stochastics Seminar
- Time
- Thursday, March 30, 2023 - 15:30 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Philippe Rigollet – Massachusetts Institute of Technology

- Series
- Time
- Thursday, March 16, 2023 - 15:30 for 1 hour (actually 50 minutes)
- Location
- Speaker
- Yun Yang – University of Illinois Urbana-Champaign

- Series
- Analysis Seminar
- Time
- Wednesday, March 15, 2023 - 14:00 for 1 hour (actually 50 minutes)
- Location
- TBA
- Speaker
- David Walnut – George Mason University – dwalnut@gmu.edu

- Series
- Stochastics Seminar
- Time
- Thursday, March 2, 2023 - 15:30 for 1 hour (actually 50 minutes)
- Location
- ONLINE
- Speaker
- Wasiur R. KhudaBukhsh – University of Nottingham – wasiur.khudabukhsh@nottingham.ac.uk

- Series
- Algebra Seminar
- Time
- Monday, February 27, 2023 - 10:20 for 1.5 hours (actually 80 minutes)
- Location
- Skiles 005
- Speaker
- Yelena Mandelshtam – UC Berkeley – yelena@math.berkeley.edu

A translation surface is obtained by identifying edges of polygons in the plane to create a compact Riemann surface equipped with a nonzero holomorphic one-form. Every Riemann surface can be given as an algebraic curve via its Jacobian variety. We aim to construct explicitly the underlying algebraic curves from their translation surfaces, given as polygons in the plane. The key tools in our approach are discrete Riemann surfaces, which allow us to approximate the Riemann matrices, and then, via theta functions, the equations of the curves. In this talk, I will present our algorithm and numerical experiments. From the newly found Riemann matrices and equations of curves, we can then make several conjectures about the curves underlying the Jenkins-Strebel representatives, a family of examples that until now, lived squarely on the analytic side of the transcendental divide between Riemann surfaces and algebraic curves.

- Series
- PDE Seminar
- Time
- Tuesday, February 21, 2023 - 15:00 for 1 hour (actually 50 minutes)
- Location
- Speaker
- Jonas Lührmann – Texas A&M University – luhrmann@math.tamu.edu

TBA

- Series
- Algebra Seminar
- Time
- Monday, January 23, 2023 - 10:20 for 1.5 hours (actually 80 minutes)
- Location
- Skiles 005
- Speaker
- Dustin Cartwright – University of Tennessee – cartwright@utk.edu

TBD

- Series
- Geometry Topology Working Seminar
- Time
- Friday, January 13, 2023 - 14:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- None – None

- Series
- Job Candidate Talk
- Time
- Thursday, December 15, 2022 - 11:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006 or https://gatech.zoom.us/j/98373229920
- Speaker
- Ibrahim Ekren – Florida State University – iekren@fsu.edu

We study the long-time regime of the prediction with expert advice problem in both full information and adversarial bandit feedback setting. We show that with full information, the problem leads to second order parabolic partial differential equations in the Euclidean space. We exhibit solvable cases for this equation and discuss the optimal behavior of both agents. In the adversarial bandit feedback setting, we show that the problem leads to second order parabolic equations in the Wasserstein space which allows us to obtain novel regret bounds. Based on joint works with Erhan Bayraktar and Xin Zhang.

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