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Department of Mathematics,
University of California San Diego

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Math 269: Combinatorics Seminar

Brendon Rhoades

UCSD

A q-analog of Ehrhart theory

Abstract:

Classical Ehrhart theory studies lattice point enumeration in integer dilates of lattice polytopes. We discuss a new and conjecture-laden q-analog of Ehrhart theory involving the orbit harmonics deformation of algebraic combinatorics. A new and somewhat subtle `harmonic algebra' attached to a lattice polytope plays a key role. Joint with Vic Reiner.

April 14, 2026

2:00 PM

APM 7321

Research Areas

Combinatorics

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