\(QS10_{9}^{(0I)}\)
Description
Phase Portrait
Topological Invariants
| TCSP | Fin Sep | Inf Sep |
|---|---|---|
| \(10\) | \(4431\) | \(312011\) |
Example
The quadratic differential system
\[
\begin{cases}
\dot{x} = P_x(x,y) \\
\dot{y} = P_y(x,y)
\end{cases}
\]
has the following phase portrait done with P4.
The phase portrait appears in the following papers
- With name \(I_{10,09}\) in {J. C. Artés, J. Llibre and A. C. Rezende}, Structurally unstable quadratic vector fields of codimension one, Birkh "auser/Springer, Cham, 2018, vi+267 pp.
- With name \(Fig 5.31 24\) in {J. C. Artés, R. E. Kooij and J. Llibre}, Structurally stable quadratic vector fields, Mem. Amer. Math. Soc. { bf 134} (1998), no.~639, viii+108 pp.; MR1432139