Nonlinear Differential Equations and Applications NoDEA · 2011 · 29 citations · 11 references
Natural SciencesMathematicsDifferential EquationsDynamical SystemsSet TheoryBoundary-value ProblemsDifferential TopologyExistence TheoryInitial Value ProblemsSystems Of Differential EquationsImpulsive ControlImpulsive Systems
A topological structure of the set of solutions to impulsive functional differential inclusions on the half-line is investigated. It is shown that the solution set is nonempty, compact and, moreover, an R δ -set. It is proved on compact intervals and then, using the inverse limit method, obtained on the half-line.
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On decreasing sequences of compact absolute retracts
D. M. Hyman · Fundamenta Mathematicae · 1969 · 106 citations · Full text