Existence of Multiple Periodic Solutions for a Semilinear Evolution Equation
نویسندگان
چکیده
In this paper, we consider the existence of multiple periodic solutions for the problem du , . , — +Lu = g(u) + h, r>0, dt "(0) = u(T), where L is a uniformly strongly elliptic operator with domain D(L) = Hjf(Q), g: R —► R is a continuous mapping, T > 0 and h: (0,T) —> HTM(Q.) is a measurable function.
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