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Displaying similar documents to “Fredholm Theory and Semilinear Equations without Resonance Involving Noncompact Perturbations, II. Applications”

Solvability conditions for elliptic problems with non-Fredholm operators

V. Volpert, B. Kaźmierczak, M. Massot, Z. Peradzyński (2002)

Applicationes Mathematicae

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The paper is devoted to solvability conditions for linear elliptic problems with non-Fredholm operators. We show that the operator becomes normally solvable with a finite-dimensional kernel on properly chosen subspaces. In the particular case of a scalar equation we obtain necessary and sufficient solvability conditions. These results are used to apply the implicit function theorem for a nonlinear elliptic problem; we demonstrate the persistence of travelling wave solutions to spatially...