Please note that the list below only shows forthcoming events, which may not include regular events that have not yet been entered for the forthcoming term. Please see the past events page for a list of all seminar series that the department has on offer.

 

Past events in this series


Fri, 27 Mar 2026
16:00
L4

On indefinite ternary quadratic forms

Peter Sarnak
(IAS Princeton)
Abstract

We describe the solution to two problems concerning indefinite integral ternary quadratic forms. The first about anisotropic forms was popularized by Margulis following his solution of the Oppenheim Conjecture. The second about the density of isotropic forms was raised by Serre. Joint work with A. Gamburd, A. Ghosh and J. Whang.

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Fri, 08 May 2026
16:00
L1

TBA

Prof. Zaher Hani
(University of Michigan)
Abstract

TBA

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