Branching of periodic solutions of autonomous systems and of differential equations in Banach spaces. (English. Russian original) Zbl 0184.18101
Sov. Math., Dokl. 8, 1013-1017 (1967); translation from Dokl. Akad. Nauk SSSR 176, 9-12 (1967).
MSC:
34C25 | Periodic solutions to ordinary differential equations |
34G10 | Linear differential equations in abstract spaces |