49:16
Closed orbits II and the Poincare-Bendixson…
Closed orbits II and the Poincare-Bendixson theorem
Duluc's criterion for the non-existence of closed orbits and the statement of the Poincare-Bendixson theorem followed by remarks.
32:24
Closed orbits I
Also includes Duluc's criterion for ruling out closed orbits.
15:01
Integrating Differential Forms - I
29:12
Grad, curl and divergence - I
14:44
Grad, curl and divergence - II
01:17:26
The differential of a form