I. Ojeda

activity

20172021

most citedOn the computation of the Apéry set of numerical monoids and affine semigroups

12 citations · 12 across the 4 of their papers we have counts for

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2 papers · 1 filter

math.CA2021

Rational Solutions of Abel Differential Equations

J. L. Bravo, L. A. Calderon, M. Fernandez +1

We study the rational solutions of the Abel equation $x^{'} = A (t) x^{3} + B (t) x^{2}$ where $A, B \in C [t]$ . We prove that if $d e g (A)$ is even or $d e g (B) > (d e g (A) - 1) /2$ then the equation has at m…

math.CA2017

Uniqueness of Limit Cycles for Quadratic Vector Fields

José Luis Bravo, Manuel Fernández, Ignacio Ojeda +1

This article deals with the study of the number of limit cycles surrounding a critical point of a quadratic planar vector field, which, in normal form, can be written as $x'= a_1 x…