Results 141 to 150 of about 5,511,845 (178)

Integrability of planar nilpotent differential systems through the existence of an inverse integrating factor [PDF]

open access: yesCommunications in Nonlinear Science and Numerical Simulation, 2019
In this work is characterized the analytic integrability problem around a nilpotent singularity for differential systems in the plane under generic conditions.
Antonio Algaba   +2 more
exaly   +8 more sources

Existence of inverse integrating factors and Lie symmetries for degenerate planar centers [PDF]

open access: yesJournal of Differential Equations, 2012
We prove that any (possibly degenerate) center of an analytic planar system admits a C∞ inverse integrating factor and a C∞ Lie symmetry in a neighborhood of the singularity.
Daniel Peralta-Salas, Jaume Giné
exaly   +4 more sources

Generalized Hopf Bifurcation for Planar Vector Fields via the Inverse Integrating Factor [PDF]

open access: yesJournal of Dynamics and Differential Equations, 2011
41 pages, no figuresInternational audienceIn this paper we study the maximum number of limit cycles that can bifurcate from a focus singular point $p_0$ of an analytic, autonomous differential system in the real plane under an analytic perturbation.
Isaac A Garcia   +2 more
exaly   +4 more sources

A Survey on the Inverse Integrating Factor [PDF]

open access: yesQualitative Theory of Dynamical Systems, 2010
The relation between limit cycles of planar differential systems and the inverse integrating factor was first shown in an article of Giacomini, Llibre and Viano appeared in 1996. From that moment on, many research articles are devoted to the study of the properties of the inverse integrating factor and its relation with limit cycles and their ...
Isaac A Garcia, Maite Grau
exaly   +5 more sources

Home - About - Disclaimer - Privacy