Positive solutions and continuous branches for boundary-value problems of differential inclusions.
Existence of solutions for some Hammerstein type integro-differential inclusions.
On periodic oscillations for a class of feedback control systems in Hilbert spaces
In this paper, by using the topological degree theory for multivalued maps and the method of guiding functions in Hilbert spaces we deal with the existence of periodic oscillations for a class of feedback control systems in Hilbert spaces.
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