Geodesic
On the number of limit cycles in perturbations of a two dimensional nonlinear differential system.
Aequationes mathematicae, Tome 53 (1997) no. 1-2, pp. 254-274.

Voir la notice de l'article provenant de la source European Digital Mathematics Library

Mots-clés : closed orbits, abelian integrals, monotonicity for quotients of abelian integrals, limit cycles, uniqueness theorem for limit cycles 
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     author = {Josef Hainzl},
     title = {On the number of limit cycles in perturbations of a two dimensional nonlinear differential system.},
     journal = {Aequationes mathematicae},
     pages = {254--274},
     publisher = {mathdoc},
     volume = {53},
     number = {1-2},
     year = {1997},
     zbl = {0871.34018},
     url = {http://geodesic.mathdoc.fr/item/AM2_1997__53_1-2_137687/}
}
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Josef Hainzl. On the number of limit cycles in perturbations of a two dimensional nonlinear differential system.. Aequationes mathematicae, Tome 53 (1997) no. 1-2, pp. 254-274. http://geodesic.mathdoc.fr/item/AM2_1997__53_1-2_137687/