IMI/Publicaţii/BASM/Ediţii/BASM n.1 (26), 1998/

Types of the critical points for quadratic system with a center of symmetry. (English)

Authors: Lupan M. N.


The affine invariant semi-algebraic partition of the set of quadratic systems with a center of symmetry in correspondence with the number, multiplicities and characters of their real singular points situated in the finite part of the phase plane is done.

Academy of Science of Moldova, Institute of Mathematics
Academiei str. 5, Chisinau, MD-2028 Moldova