Open AccessStructurally unstable quadratic vector fields of codimension two: families possessing a finite saddle-node and an infinite saddle-node
Author(s) -
Joan C. Artés,
Marcos C. Mota,
Alex C. Rezende
Publication year - 2021
Publication title -
electronic journal on the qualitative theory of differential equations
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 33
ISSN - 1417-3875
DOI - 10.14232/ejqtde.2021.1.35
Subject(s) - mathematics , codimension , node (physics) , saddle , quadratic equation , pure mathematics , mathematical analysis , geometry , mathematical optimization , physics , quantum mechanics