The ring of differential operators on a monomial curve is a Hopf algebroid

Fuente: arXiv
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Auteurs principaux: Krähmer, Ulrich, Mahaman, Myriam
Format: Preprint
Publié: 2024
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author Krähmer, Ulrich
Mahaman, Myriam
author_facet Krähmer, Ulrich
Mahaman, Myriam
contents This article considers cuspidal curves whose coordinate rings are numerical semigroup algebras. Using a general result about descent of Hopf algebroid structures, their rings of differential operators are shown to be cocommutative and conilpotent left Hopf algebroids. If the semigroups are symmetric so that the curves are Gorenstein, they are full Hopf algebroids (admit an antipode).
format Preprint
id arxiv_https___arxiv_org_abs_2405_08490
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The ring of differential operators on a monomial curve is a Hopf algebroid
Krähmer, Ulrich
Mahaman, Myriam
Quantum Algebra
Commutative Algebra
Rings and Algebras
16S32, 16T15, 20M14
This article considers cuspidal curves whose coordinate rings are numerical semigroup algebras. Using a general result about descent of Hopf algebroid structures, their rings of differential operators are shown to be cocommutative and conilpotent left Hopf algebroids. If the semigroups are symmetric so that the curves are Gorenstein, they are full Hopf algebroids (admit an antipode).
title The ring of differential operators on a monomial curve is a Hopf algebroid
topic Quantum Algebra
Commutative Algebra
Rings and Algebras
16S32, 16T15, 20M14
url https://arxiv.org/abs/2405.08490