Geodesic
A note on nonhomogeneous initial and boundary conditions in parabolic problems solved by the Rothe method
Applications of Mathematics, Tome 25 (1980) no. 1, pp. 56-72.

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When solving parabolic problems by the so-called Rothe method (see K. Rektorys, Czech. Math. J. 21 (96), 1971, 318-330 and other authors), some difficulties of theoretical nature are encountered in the case of nonhomogeneous initial and boundary conditions. As a rule, these difficulties lead to rather unnatural additional conditions imposed on the corresponding bilinear form and the initial and boundary functions. In the present paper, it is shown how to remove such additional assumptions in the case of the initial conditions and how to replace them by simpler, more natural assumptions in the case of the boundary conditions. In the last chapter applications and convergence of the Ritz method (or of other direct methods) to approximate solution of the originating elliptic problems is considered.
DOI : 10.21136/AM.1980.103837
Classification : 35K15, 35K20, 65N40, 65N99
Keywords: Rothe method; non-homogeneous initial and boundary conditions; weak solution 
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Rektorys, Karel; Ludvíková, Marie. A note on nonhomogeneous initial and boundary conditions in parabolic problems solved by the Rothe method. Applications of Mathematics, Tome 25 (1980) no. 1, pp. 56-72. doi : 10.21136/AM.1980.103837. http://geodesic.mathdoc.fr/articles/10.21136/AM.1980.103837/

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