Existence of Periodic Solutions for Nonl
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Ghidei Zedingle
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Article
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1998
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Elsevier Science
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English
⚖ 248 KB
In this paper we shall study the existence of a periodic solution to the nonlinear Ž . Ž Ž .. differential equation x q Ax y A\*x y A\*Ax q B t x q f t, x t s 0 in some complex Hilbert space, using duality and variational methods.