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Impulsive semilinear differential inclusions: topological structure of the solution set and solutions on non-compact domains. (English) Zbl 1147.34045

The following impulsive Cauchy problem is considered:

x ' (t)A(t)x(t)+F(t,x(t))a.e.t[0,b],tt k ,k=1,2,,m,x(t k + )=x(t k )+I k (x(t k )),k=1,2,,m,x(0)=a 0 E,

where {A(t)} t[0,b] is a family of linear operators (not necessarily bounded) in a Banach space E generating an evolution operator, F is a multifunction of Carath√©odory type, 0<t 0 <t 1 <...<t m <t m+1 =b, I k :EE,k=1,...,m, are impulse functions and x(t + )=lim st + x(s)· First a theorem on the compactness of the set of all mild solutions for the problem is given. Then this result is applied to obtain the existence of mild solutions for the impulsive Cauchy problem defined on noncompact domains. An example illustrating the abstract results is also presented.

34G25Evolution inclusions
34A37Differential equations with impulses