Jacobian pairs for planar analytic quadratic-like submersion functions

A Jacobian pair for a submersion function f : R 2 → R is a function g : R 2 → R such that the Jacobian determinant of the map ( f , g ) never vanishes. A function f : R 2 → R is called quadratic-like if it is a polynomial of degree 2 in one of the variables. In this note we investigate the existence of Jacobian pairs for analytic quadratic-like submersions.

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Publication Details

Journal
Journal of Differential Equations
Published
2026-09-11
DOI
https://doi.org/10.1016/j.jde.2026.114772
Primary Topic
Advanced Differential Equations and Dynamical Systems
Type
article
Field-Weighted Citation Impact
0.00

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article

Jacobian pairs for planar analytic quadratic-like submersion functions

Luis Fernando Mello, Jaume Llibre, Francisco Braun, Matheus Natanael Cassiano
Journal of Differential Equations
Advanced Differential Equations and Dynamical Systems
article

Jacobian pairs for planar analytic quadratic-like submersion functions

Luis Fernando Mello, Jaume Llibre, Francisco Braun, Matheus Natanael Cassiano
article en

Abstract

A Jacobian pair for a submersion function f : R 2 → R is a function g : R 2 → R such that the Jacobian determinant of the map ( f , g ) never vanishes. A function f : R 2 → R is called quadratic-like if it is a polynomial of degree 2 in one of the variables. In this note we investigate the existence of Jacobian pairs for analytic quadratic-like submersions.

Journal of Differential EquationsVol. 486
Universitat Autònoma de Barcelona (ES), Universidade Federal de São Carlos (BR), Reial Acadèmia de Ciències i Arts de Barcelona (ES), Universidade Federal de Itajubá (BR)
Coordenação de Aperfeiçoamento de Pessoal de Nível Superior, Conselho Nacional de Desenvolvimento Científico e Tecnológico, Fundação de Amparo à Pesquisa do Estado de Minas Gerais, Agencia Estatal de Investigación
Openalex Percentile: Top 6%
Advanced Differential Equations and Dynamical Systems
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