The Automorphism groups of zero-dimensional monomial algebras

Fuente: arXiv
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Hauptverfasser: Díaz, Roberto, Liendo, Alvaro, Manzano-Flores, Gonzalo, Regeta, Andriy
Format: Preprint
Veröffentlicht: 2024
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author Díaz, Roberto
Liendo, Alvaro
Manzano-Flores, Gonzalo
Regeta, Andriy
author_facet Díaz, Roberto
Liendo, Alvaro
Manzano-Flores, Gonzalo
Regeta, Andriy
contents A monomial algebra B is defined as a quotient of a polynomial ring by a monomial ideal, which is an ideal generated by a finite set of monomials. In this paper, we determine the automorphism group of a monomial algebra B, under the assumption that B is a finite-dimensional vector space over a field of characteristic zero. We achieve this by providing an explicit classification of the homogeneous locally nilpotent derivations of B. The main body of the paper addresses the more general case of semigroup algebras, with the polynomial ring being a particular case.
format Preprint
id arxiv_https___arxiv_org_abs_2408_02197
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Automorphism groups of zero-dimensional monomial algebras
Díaz, Roberto
Liendo, Alvaro
Manzano-Flores, Gonzalo
Regeta, Andriy
Algebraic Geometry
13F55, 13N15, 14L30, 14M25
A monomial algebra B is defined as a quotient of a polynomial ring by a monomial ideal, which is an ideal generated by a finite set of monomials. In this paper, we determine the automorphism group of a monomial algebra B, under the assumption that B is a finite-dimensional vector space over a field of characteristic zero. We achieve this by providing an explicit classification of the homogeneous locally nilpotent derivations of B. The main body of the paper addresses the more general case of semigroup algebras, with the polynomial ring being a particular case.
title The Automorphism groups of zero-dimensional monomial algebras
topic Algebraic Geometry
13F55, 13N15, 14L30, 14M25
url https://arxiv.org/abs/2408.02197