On three solutions of the second order periodic boundary-value problem

• Published in: Нелінійні коливання
• Date: 2001
• Main Authors: Draessler, J., Rachůnková, I.
• Format: Article
• Language: English
• Published: Інститут математики НАН України 2001
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/174763
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: On three solutions of the second order periodic boundary-value problem / J. Draessler, I. Rachůnková // Нелінійні коливання. — 2001. — Т. 4, № 3. — С. 471-486. — Бібліогр.: 6 назв. — англ.

We consider the periodic boundary-value problem x'' + a(t)x' + b(t)x = f(t, x, x'), x(') =x(2π), x'(0) = x' (2π), where a, b are Lebesgue integrable functions and f fulfils the Caratheodory conditions. We extend results about the Leray – Schauder topological deg...