On the Hopf-Oleinik lemma for degenerate-elliptic equations at characteristic points

DOI10.1007/s00526-016-1057-9zbMath1356.35116OpenAlexW2522473829WikidataQ124811373 ScholiaQ124811373MaRDI QIDQ342989

Giulio Tralli, Vittorio Martino

Publication date: 18 November 2016

Published in: Calculus of Variations and Partial Differential Equations (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00526-016-1057-9

zbMATH Keywords

comparisonHeisenberg groupnonlinear operatorKohn LaplacianCarnot groupbarrier functioncharacteristic pointelliptic linear operatorHopf Lemmasub-Laplacians

Mathematics Subject Classification ID

Degenerate elliptic equations (35J70) PDEs on Heisenberg groups, Lie groups, Carnot groups, etc. (35R03) Comparison principles in context of PDEs (35B51)

Related Items (8)

A local Hopf lemma for the Kohn Laplacian on the Heisenberg group ⋮ Domain variation solutions for degenerate two phase free boundary problems ⋮ Strict starshapedness of solutions to the horizontal \(p\)-Laplacian in the Heisenberg group ⋮ The normal derivative lemma and surrounding issues ⋮ A Jellett type theorem for the Levi curvature ⋮ Horizontal curvatures and classification results ⋮ Horizontal Newton operators and high-order Minkowski formula ⋮ Higher-order Minkowski formula in complex space forms

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