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Caltech

Caltech/USC Joint Algebra and Geometry Seminar

Thursday, October 23, 2025
2:30pm to 3:30pm
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Whittaker averaging and singular support
Jeremy Taylor, Hedrick Assistant Adjunct Professor, Department of Mathematics, University of California - Los Angeles,

USC KAP 414

I will give a microlocal description of the kernel of Whittaker averaging. Applying this to the geometric Langlands program, I will generalize some results of Færgeman and Raskin, using the geometry of the global nilpotent cone. By an argument of Bezrukavnikov and Morton-Ferguson, this also has applications to Gaitsgory's central sheaves in the affine Hecke category.

For more information, please contact Math Department by phone at 6263954335 or by email at [email protected].