In 1998 I.E.Egorov, using the nonstationary Galerkin method and regularization method, proved the existence and uniqueness of a regular solution to the boundary value problem for a higher order equation with changing time direction. In this paper an error estimate for the approximate solutions of this problem is obtained, and expressed in terms of the regularization parameter and the eigenvalues of the spectral problem for higher order elliptic equation.

Topics
Finite-element analysis
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