dc.contributor.author
Artés Ferragud, Joan Carles
dc.contributor.author
Llibre, Jaume
dc.identifier
https://ddd.uab.cat/record/12916
dc.identifier
urn:oai:ddd.uab.cat:12916
dc.identifier
urn:10.5565/PUBLMAT_41197_02
dc.identifier
urn:recercauab:ARE-12395
dc.identifier
urn:oai:raco.cat:article/37881
dc.identifier
urn:oai:egreta.uab.cat:publications/6da681ca-de78-4062-9b41-5060e09ab9f6
dc.identifier
urn:articleid:20144350v41n1p7
dc.description.abstract
We study phase portraits of quadratic vector fields with a weak focus of third order at the origin. We show numerically the existence of at least 20 different global phase portraits for such vector fields coming from exactly 16 different local phase portraits available for these vector fields. Among these 20 phase portraits, 17 have no limit cycles and three have at least one limit cycle.
dc.format
application/pdf
dc.relation
Publicacions matemàtiques ; V. 41 n. 1 (1997) p. 7-39
dc.rights
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dc.rights
https://rightsstatements.org/vocab/InC/1.0/
dc.title
Quadratic vector fields with a weak focus of third order
