Hostname: page-component-78c5997874-mlc7c Total loading time: 0 Render date: 2024-11-02T22:17:12.336Z Has data issue: false hasContentIssue false

On periodic solutions to autonomous retarded functional differential equations

Published online by Cambridge University Press:  17 April 2009

Zhanyuan Hou
Affiliation:
Mathematics Department, Hebei Teacher's University, Shijiazhuang, Peoples Republic of China
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Under the assumption that Ca = C([−r, 0], Sn−1(a)) is positively invariant for a > 0, two necessary and sufficient conditions are obtained for an autonomous retarded functional differential equation to have a non-trivial periodic solution in Ca. Moreover, a feasible sufficient condition is given, which is better for n = 2 than that given by Dos Reis and Baroni.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1990

References

[1]Dos Reis, J.G. and Baroni, R.L.S., ‘On the existence of periodic solutions for autonomous retarded functional differential equations on R 2’, Proc. Royal Soc. Edinburgh Section A 102 (1986), 259262.CrossRefGoogle Scholar
[2]Hale, J.K., Functional Differential Equations, (Appl. Math. Sci. 3) (Springer-Verlag, Berlin, Heidelberg, New York, 1971).CrossRefGoogle Scholar
[3]Hale, J.K., Theory of Functional Differential Equations, (2nd edition), (Appl. Math. Sci. 3) (Springer-Verlag, Berlin Heidelberg, New York, 1977).CrossRefGoogle Scholar
[4]Krasnosel'skii, M.A., Positive Solutions of Operator Equations (Noordhoff, Grongingen, 1964).Google Scholar