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A new proof of Moser’s parabolic Harnack inequality using the old ideas of Nash. (English) Zbl 0652.35052
The authors study different properties of the fundamental solution corresponding to a general second order parabolic equation. From these properties they derive regularity (Hölder continuity) for a general solution. Their approach returns to Nash’s ideas when proving the Hölder continuity of solutions.
Reviewer: J.I.Diaz

MSC:
35K10 Second-order parabolic equations
35A08 Fundamental solutions to PDEs
35B65 Smoothness and regularity of solutions to PDEs
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