English

Examples on the sharpness of an inequality about multiplicities over hyperfields

Number Theory 2020-10-20 v1 Commutative Algebra

Abstract

In this paper, the author introduces hyperfields and give some facts about the roots and multiplicities of polynomials over hyperfield based on \cite{2} and \cite{3}. Then he tests the sharpness of an inequality in Baker's former work \cite{2} about the behavior of multiplicities under homomorphisms between hyperfields and show that the inequality is not sharp under the natural homomorphisms CP\mathbb{C}\rightarrow\mathbb{P} and CV\mathbb{C}\rightarrow\mathbb{V} while it is sharp under the natural homomorphisms CK\mathbb{C}\rightarrow\mathbb{K}, RS\mathbb{R}\rightarrow\mathbb{S} and RT\mathbb{R}\rightarrow\mathbb{T} according to the previous work \cite{2} of Baker and Lorscheid.

Keywords

Cite

@article{arxiv.2010.09492,
  title  = {Examples on the sharpness of an inequality about multiplicities over hyperfields},
  author = {Ziqi Liu},
  journal= {arXiv preprint arXiv:2010.09492},
  year   = {2020}
}

Comments

undergraduate research work, 15 pages

R2 v1 2026-06-23T19:27:07.656Z