Expansion by eigenvectors in case of simple eigenvalues of singular differential operator

O. V. Makhnei, R. M. Tatsii

Abstract


The asymptotic formulas with large values of parameter for solutions of singular differential equation allow us to estimate Green's function of the boundary-value problem. With the help of this estimation the expansion of singular dierential operator by eigenvectors in the case of simple eigenvalues is constructed.

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