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Ehrhart polynomials of generalized permutohedra from A to B
Algebra & Discrete MathematicsSpeaker: | Warut Thawinrak, UC Davis |
Location: | 1147 MSB |
Start time: | Fri, Nov 22 2024, 3:10PM |
I’ll show how to derive a formula for the Ehrhart polynomials for the type-$B$ generalized permutohedra, which offer a more concise alternative to the recent formula obtained by Eur, Fink, Larson, and Spink from their study of delta-matroids. My approach utilized some of the techniques and tools introduced around 20 years ago by Postnikov from his study of generalized type-$A$ permutohedra, a family of polytopes that interconnects with many mathematical concepts such as matroids, graphs, and Weyl groups.