Strong extremum principle isotropic in a planar domain

DOI10.1007/BF00970024zbMath0438.35018MaRDI QIDQ1141826

L. I. Kamynin, B. N. Khimchenko

Publication date: 1979

Published in: Siberian Mathematical Journal (Search for Journal in Brave)

zbMATH Keywords

harmonic functionselliptic equationstrong extremum principle

Mathematics Subject Classification ID

Maximum principles in context of PDEs (35B50) Second-order elliptic equations (35J15) Second-order parabolic equations (35K10)

Cites Work

• Theorems of the Giraud type for second-order equations with weakly degenerate nonnegative characteristic part
• A strong maximum principle for parabolic equations

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