On polynomial automorphisms of Nagata type

Fuente: arXiv
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Main Authors: Huarcaya, Jorge A. C., Palacios, Joe
Format: Preprint
Published: 2024
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author Huarcaya, Jorge A. C.
Palacios, Joe
author_facet Huarcaya, Jorge A. C.
Palacios, Joe
contents We define a family of polynomial ring homomorphisms generalizing the well-known Nagata automorphism. We establish necessary and sufficient conditions under which these homomorphisms are automorphisms, and verify that they satisfy the Jacobian conjecture. Additionally, we provide a necessary condition within this family to obtain wild automorphisms, and independently derive a property related to the upper semicontinuity of the Łojasiewicz exponent at infinity.
format Preprint
id arxiv_https___arxiv_org_abs_2401_12523
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle On polynomial automorphisms of Nagata type
Huarcaya, Jorge A. C.
Palacios, Joe
Algebraic Geometry
Commutative Algebra
We define a family of polynomial ring homomorphisms generalizing the well-known Nagata automorphism. We establish necessary and sufficient conditions under which these homomorphisms are automorphisms, and verify that they satisfy the Jacobian conjecture. Additionally, we provide a necessary condition within this family to obtain wild automorphisms, and independently derive a property related to the upper semicontinuity of the Łojasiewicz exponent at infinity.
title On polynomial automorphisms of Nagata type
topic Algebraic Geometry
Commutative Algebra
url https://arxiv.org/abs/2401.12523