IMI/Publicaţii/BASM/Ediţii/BASM n.1 (11), 1993/

Topological classification of quadratic systems with a unique finite second order singularity with two zero eigenvalues. (English)

Authors: Nikolaev I. V., Vulpe Nicolae


We study the quadratic systems of differential equations with a unique finite non-elementary singular point of the multiplicity two. For such systems we establish the invariant criteria, which allow us to answer whether or not a given system belongs to one of the 10 possible topological classes.

Institutul de Matematică Academia de Ştiinţe
str. Academiei 5, MD-2028 Chişinău, Moldova