An oscillation theorem for linear systems with more than one degree of freedom. (English) Zbl 0243.34086
Conf. Theory ordinary partial diff. Equ., Dundee/Scotland 1972, Lect. Notes Math. 280, 232-235 (1972).
MSC:
34C25 | Periodic solutions to ordinary differential equations |
37-XX | Dynamical systems and ergodic theory |