The first initial-boundary value problem for quasilinear second order parabolic equations
Gary M. Lieberman (1986)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Gary M. Lieberman (1986)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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Gary M. Lieberman (2002)
Annali della Scuola Normale Superiore di Pisa - Classe di Scienze
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There is a long history of studying nonlinear boundary value problems for elliptic differential equations in a domain with sufficiently smooth boundary. In this paper, we show that the gradient of the solution of such a problem is continuous when a directional derivative is prescribed on the boundary of a Lipschitz domain for a large class of nonlinear equations under weak conditions on the data of the problem. The class of equations includes linear equations with fairly rough coefficients...
Tomasz Dłotko (1991)
Czechoslovak Mathematical Journal
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Darya E. Apushkinskaya, Alexander I. Nazarov (2000)
Applications of Mathematics
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We review the recent results for boundary value problems with boundary conditions given by second-order integral-differential operators. Particular attention has been paid to nonlinear problems (without integral terms in the boundary conditions) for elliptic and parabolic equations. For these problems we formulate some statements concerning a priori estimates and the existence theorems in Sobolev and Hölder spaces.