Alexander Fish

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20242026

most citedSimplices in large sets and directional expansion in ergodic actions

1 citations · 1 across the 5 of their papers we have counts for

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Showing 2025 · math.DSShow all

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math.DS2025

Dynamics of multiplicative groups over fields and Folner-Kloosterman sums

Michael Björklund, Alexander Fish

For two countably infinite fields whose multiplicative groups are isomorphic, we examine invariant couplings between the actions that these groups induce on the additive Pontryagin…

math.DS2025

Ehrhart spectra of large subsets of $Z^{r}$

Michael Björklund, Rickard Cullman, Alexander Fish

This paper introduces and studies the Ehrhart spectrum of a set $E \subseteq Z^{r}$ , defined as the set of all Ehrhart polynomials of simplices with vertices in $E$ , general…

Dynamics of multiplicative groups over fields and Folner-Kloosterman sums

Ehrhart spectra of large subsets of Zr

Ehrhart spectra of large subsets of $Z^{r}$