Mathematics of the USSR-Sbornik · 1969 · 40 citations · 5 references
Natural SciencesMathematicsDifferential EquationsBoundary ConditionsBoundary-value ProblemsInitial Value ProblemsMoving Boundary ProblemsPartial Differential EquationsWeak FormulationElliptic Boundary-value ProblemsElliptic FunctionsElliptic Partial Differential EquationsInitial-boundary Value Problems
We investigate the elliptic equation of order , degenerate on the boundary of a bounded domain . In local coordinates , introduced in a neighborhood of the point and in which is given by , the operator
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Non‐coercive boundary value problems
J. J. Kohn, Louis Nirenberg · Communications on Pure and Applied Mathematics · 1965 · 436 citations