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On maximum principles for some degenerate parabolic operators. (English) Zbl 0261.35046

35K10 Second-order parabolic equations
35B05 Oscillation, zeros of solutions, mean value theorems, etc. in context of PDEs
35M99 Partial differential equations of mixed type and mixed-type systems of partial differential equations
Full Text: DOI
[1] Hill, C.Denson, A sharp maximum principle for degenerate elliptic-parabolic equations, Ind. univ. math. J., 20, 213-229, (1970) · Zbl 0205.10402
[2] Protter, M.H; Weinberger, H.F, Maximum principles in differential equations, (1967), Prentice-Hall Englewood Cliffs, NJ · Zbl 0153.13602
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