Exploració per autor "Ferragut Amengual, Antoni Manel"
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Local behavior of planar analytic vector fields via integrability
Álvarez, M.J.; Ferragut Amengual, Antoni Manel (2012-01)
Article
Accés restringit per política de l'editorialWe present an algorithm to study the local behavior of singular points of planar analytic vector fields having a first integral which is a quotient of analytic functions. The algorithm is based on the blow-up method. It ... -
Local behavior of planar analytic vector fields via integrability
Ferragut Amengual, Antoni Manel; Álvarez, María Jesús (2009-12)
Report de recerca
Accés obertWe present an algorithm to study the local behavior of singular points of planar analytic vector fields having a first integral which is a quotient of analytic functions. The algorithm is based on the blow up method. It ... -
Quadratic planar differential systems with algebraic limit cycles via quadratic plane Cremona maps
Alberich Carramiñana, Maria; Ferragut Amengual, Antoni Manel; Llibre Saló, Jaume (Elsevier, 2021)
Article
Accés obertIn this paper we study the action of planar birational transformations, also known as plane Cremona maps, on quadratic planar differential systems. We provide geometrical characterizations of when a quadratic system is ...