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Colloquium abstracts

Vikram Giri
ETH Zurich, Switzerland
August 4, 2025

A spectral gap for spinors on hyperbolic surfaces.:  We'll construct a sequence of spin hyperbolic surfaces with genus going to infinity and with a uniform spectral gap for the Dirac operator. The surfaces in question will arise from a tower of abelian covers of an arithmetic surface. Based on joint work with Anshul Adve.

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