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Local-in-time regularity results for some flux-limited diffusion equations of porous media type. (English) Zbl 1282.35112

Summary: We prove some regularity results for solutions of some flux limited diffusion equations of porous media type for Lipschitz initial data (or assuming a uniform gradient bound on some power of the data), including the fast diffusion case in which the results are global in time. We also develop the existence and uniqueness theory for solutions of the fast diffusion case, which was not covered in the current literature.

MSC:

35B65 Smoothness and regularity of solutions to PDEs
35K55 Nonlinear parabolic equations
35K65 Degenerate parabolic equations
35K15 Initial value problems for second-order parabolic equations
Full Text: DOI

References:

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