English

A tropical version of Hilbert polynomial (in dimension one)

Algebraic Geometry 2024-06-12 v4

Abstract

For a tropical univariate polynomial ff we define its tropical Hilbert function as the dimension of a tropical linear prevariety of solutions of the tropical Macauley matrix of the polynomial up to a (growing) degree. We show that the tropical Hilbert function equals (for sufficiently large degrees) a sum of a linear function and a periodic function with an integer period. The leading coefficient of the linear function coincides with the tropical entropy of ff. Also we establish sharp bounds on the tropical entropy.

Keywords

Cite

@article{arxiv.2111.14742,
  title  = {A tropical version of Hilbert polynomial (in dimension one)},
  author = {Nikita Elizarov and Dima Grigoriev},
  journal= {arXiv preprint arXiv:2111.14742},
  year   = {2024}
}