On the solvability of perturbations of linear boundary value problems at resonance for functional differential equations |
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| Authors: | E. Bravyi |
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| Affiliation: | Scientific Center “Functional Differential Equations”, Perm State Technical University, Komsomol’sky 29a, Perm 614990, Russia |
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| Abstract: | Necessary and sufficient conditions of the unique solvability of perturbations of linear boundary value problems at resonance for functional differential equations are obtained. These conditions are effective and expressed in terms of norms of the positive and negative parts of regular operators. |
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| Keywords: | 34K06 34K10 34K13 |
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