English

Genus one correspondence between tropical and algebraic curves

Algebraic Geometry 2026-07-07 v1

Abstract

We show that the genuinely enumerative count of algebraic elliptic curves in any toric variety agrees with the count of the corresponding well-spaced tropical curves, weighted by explicit combinatorial multiplicities. This provides a complete genus-11 generalization of the celebrated Nishinou--Siebert correspondence theorem in genus 00. The proof is algebro-geometric and relies on logarithmic deformation theory together with an explicit enumeration of logarithmic maps with fixed tropicalization.

Keywords

Cite

@article{arxiv.2607.06426,
  title  = {Genus one correspondence between tropical and algebraic curves},
  author = {Alessio Cela and Sae Koyama},
  journal= {arXiv preprint arXiv:2607.06426},
  year   = {2026}
}

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