Asymptotic spherical symmetry of the free boundary in degenerate diffusion equations

DOI10.1007/BF01774286zbMath0645.35100MaRDI QIDQ1103124

Martino Bardi

Publication date: 1987

Published in: Annali di Matematica Pura ed Applicata. Serie Quarta (Search for Journal in Brave)

zbMATH Keywords

comparison principleporous medium equationLipschitz continuitymethod of moving planesfree boundaryalmost radialityasymptotic spherical symmetry

Mathematics Subject Classification ID

Smoothness and regularity of solutions to PDEs (35B65) Nonlinear parabolic equations (35K55) Flows in porous media; filtration; seepage (76S05) Free boundary problems for PDEs (35R35) Geometric theory, characteristics, transformations in context of PDEs (35A30)

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