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Main Authors: Kuroda, Masamichi, Nakashima, Norihiro, Tsujie, Shuhei
Format: Preprint
Published: 2025
Subjects:
Online Access:https://arxiv.org/abs/2512.10838
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author Kuroda, Masamichi
Nakashima, Norihiro
Tsujie, Shuhei
author_facet Kuroda, Masamichi
Nakashima, Norihiro
Tsujie, Shuhei
contents The characteristic polynomial plays an important role in study of hyperplane arrangements. There are several refinements of the characteristic polynomial. One of them is the coboundary polynomial defined by Crapo. Another refinement is the characteristic quasi-polynomial for an integral arrangement defined by Kamiya, Takemura, and Terao. Recently, the first and third authors introduced the characteristic quasi-polynomial for arrangement defined over a residually finite Dedekind domain. In this article, we introduce the common refinement of the coboundary polynomial and characteristic quasi-polynomial for an arrangement over a residually finite Dedekind domain.
format Preprint
id arxiv_https___arxiv_org_abs_2512_10838
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle The Coboundary Quasi-Polynomials of Hyperplane Arrangements over Residually Finite Dedekind Domains
Kuroda, Masamichi
Nakashima, Norihiro
Tsujie, Shuhei
Combinatorics
52C35, 05E40
The characteristic polynomial plays an important role in study of hyperplane arrangements. There are several refinements of the characteristic polynomial. One of them is the coboundary polynomial defined by Crapo. Another refinement is the characteristic quasi-polynomial for an integral arrangement defined by Kamiya, Takemura, and Terao. Recently, the first and third authors introduced the characteristic quasi-polynomial for arrangement defined over a residually finite Dedekind domain. In this article, we introduce the common refinement of the coboundary polynomial and characteristic quasi-polynomial for an arrangement over a residually finite Dedekind domain.
title The Coboundary Quasi-Polynomials of Hyperplane Arrangements over Residually Finite Dedekind Domains
topic Combinatorics
52C35, 05E40
url https://arxiv.org/abs/2512.10838