Mathematische Zeitschrift · 1975 · 103 citations · 11 references
Natural SciencesMathematicsDynamical SystemsBoundary ConditionsHarmonic AnalysisPartial Differential EquationsPerturbation TheoryRegular SolutionsWeak FormulationElliptic Boundary-value ProblemsElliptic FunctionsElliptic Partial Differential EquationsQuasilinear TheoryRegularity CriteriaRegularity TheoryStrong Boundary Conditions
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