Tropical Poincar\'e bundle, Fourier-Mukai transform, and a generalized Poincar\'e formula

We construct a tropical analogue of the Poincar\'e bundle and prove a (cohomological) Fourier-Mukai transform for real tori with integral structures. We then prove a tropical analogue of Beauville's generalized Poincar\'e formula for polarized abelian varieties. Some consequences include a geometric Riemann-Roch theorem for tropical abelian varieties, as well as a tropical Poincar\'e-Prym formula which was recently conjectured by R"ohrle and Zakharov.

Publication Details

Journal
ArXiv.org
Published
2025-03-17
Primary Topic
Polynomial and algebraic computation
Type
article
Field-Weighted Citation Impact
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article

Tropical Poincar\'e bundle, Fourier-Mukai transform, and a generalized Poincar\'e formula

ArXiv.org
Polynomial and algebraic computation
article

Tropical Poincar\'e bundle, Fourier-Mukai transform, and a generalized Poincar\'e formula

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Abstract

We construct a tropical analogue of the Poincar\'e bundle and prove a (cohomological) Fourier-Mukai transform for real tori with integral structures. We then prove a tropical analogue of Beauville's generalized Poincar\'e formula for polarized abelian varieties. Some consequences include a geometric Riemann-Roch theorem for tropical abelian varieties, as well as a tropical Poincar\'e-Prym formula which was recently conjectured by R\"ohrle and Zakharov.

ArXiv.org
Openalex Percentile: Top 47%
Polynomial and algebraic computation
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Tropical Poincar\'e bundle, Fourier-Mukai transform, and a generalized Poincar\'e formula · ArXiv.org (2025) | TGRS Research Map | TGRS