Resum
A quadratic system is called chordal if all its singularities are on the equator of the Poincaré sphere. First, we establish necessary and sufficient conditions for a quadratic system to be chordal. Later, we determine all the phase portraits for such systems. © 1986 Rocky Mountain Mathematics Consortium.
Idioma original | English |
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Pàgines (de-a) | 751-782 |
Revista | Rocky Mountain Journal of Mathematics |
Volum | 16 |
DOIs | |
Estat de la publicació | Publicada - 1 de gen. 1986 |