Abstract
We study the Galerkin method for a third-order differential-operator equation with self-adjoint leading operator A and subordinate linear operator K(t) in a separable Hilbert space. We prove a theorem on the existence and uniqueness of a strong solution of the original problem. We derive estimates for the accuracy of the approximate solutions constructed by the Galerkin method. An application of the suggested method to the solution of a model problem is described.
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Original Russian Text © P.V. Vinogradova, A.G. Zarubin, 2014, published in Differentsial’nye Uravneniya, 2014, Vol. 50, No. 2, pp. 242–249.
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Vinogradova, P.V., Zarubin, A.G. Galerkin method for a third-order differential-operator equation. Diff Equat 50, 246–253 (2014). https://doi.org/10.1134/S0012266114020128
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DOI: https://doi.org/10.1134/S0012266114020128