Resum
The Darboux method introduces algebraic solutions quite useful to obtain invariant and first integrals of polynomial differential systems. Here we study the 2D Lotka-Volterra (LVS) and the complex quadratic system (QS) using straight lines for both and conics for the LVS. The conditions needed to obtain these invariants are given and a study of the phase space portrait is done. © 1999 American Institute of Physics.
| Idioma original | Anglès |
|---|---|
| Pàgines (de-a) | 2074-2091 |
| Revista | Journal of Mathematical Physics |
| Volum | 40 |
| Número | 4 |
| DOIs | |
| Estat de la publicació | Publicada - 1 de gen. 1999 |