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Stationary Galerkin method for a parabolic equation with changing time direction. (Russian) Zbl 1274.35202

Summary: We apply a stationary Galerkin method for solving the first boundary problem for a parabolic equation with changing time direction in a cylindrical domain. We choose the basis functions as the solutions of the spectral problem for the Laplace equation. We study the weak and strong convergence of the approximate solutions to a regular solution.

MSC:

35K65 Degenerate parabolic equations
35K20 Initial-boundary value problems for second-order parabolic equations
65N30 Finite element, Rayleigh-Ritz and Galerkin methods for boundary value problems involving PDEs