Symmetrizer group of a projective hypersurface

Fuente: arXiv
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Auteur principal: Hwang, Jun-Muk
Format: Preprint
Publié: 2025
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author Hwang, Jun-Muk
author_facet Hwang, Jun-Muk
contents To each projective hypersurface which is not a cone, we associate an abelian linear algebraic group called the symmetrizer group of the corresponding symmetric form. This group describes the set of homogeneous polynomials with the same Jacobian ideal and gives a conceptual explanation of results by Ueda--Yoshinaga and Wang. In particular, the diagonalizable part of the symmetrizer group detects Sebastiani-Thom property of the hypersurface and its unipotent part is related to the singularity of the hypersurface.
format Preprint
id arxiv_https___arxiv_org_abs_2501_08633
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Symmetrizer group of a projective hypersurface
Hwang, Jun-Muk
Algebraic Geometry
14J70, 14J17
To each projective hypersurface which is not a cone, we associate an abelian linear algebraic group called the symmetrizer group of the corresponding symmetric form. This group describes the set of homogeneous polynomials with the same Jacobian ideal and gives a conceptual explanation of results by Ueda--Yoshinaga and Wang. In particular, the diagonalizable part of the symmetrizer group detects Sebastiani-Thom property of the hypersurface and its unipotent part is related to the singularity of the hypersurface.
title Symmetrizer group of a projective hypersurface
topic Algebraic Geometry
14J70, 14J17
url https://arxiv.org/abs/2501.08633