Published articles

Published articles 1 records found  Search took 0.02 seconds. 
14 p, 293.9 KB Center Problem for trigonometric Liénard systems / Gasull i Embid, Armengol (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Giné, Jaume (Universitat de Lleida. Departament de Matemàtiques) ; Valls, Clàudia (Universidade de Lisboa. Departamento de Matemàtica)
We give a complete algebraic characterization of the non-degenerated centers for planar trigonometric Liénard systems. The main tools used in our proof are the classical results of Cherkas on planar analytic Liénard systems and the characterization of some subfields of the quotient field of the ring of trigonometric polynomials. [...]
2017 - 10.1016/j.jde.2017.05.008
Journal of Differential Equations, Vol. 263 (2017) , p. 3928-3942  

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