\(QS10_{3}^{(1?)}\)
Description
Phase Portrait
Topological Invariants
| TCSP | Fin Sep | Inf Sep |
|---|---|---|
| \(10\) | \(4410\) | \(221211\) |
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 \(U^1_{D52a}\) 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.
Neighbours of Codimension 0
- The portrait \(QS10_{3}^{(1?)}\) bifurcates into portraits \(QS10_{4}^{(0)}\) and \(QS10_{11}^{(0?)}\text{(1,0)LC}\).