Mathematische Zeitschrift · 1968 · 50 citations · 13 references
Natural SciencesMathematicsDifferential EquationsHarmonic AnalysisOperator TheoryPartial Differential EquationsSpectral TheoryVariational PrinciplesWeak FormulationFredholm OperatorsFunctional Analysis Of FunctionsFunctional EquationsIll-posed Problem RegularizationNonlinear Variational ProblemsRegularizationSobolev Spaces
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Non‐coercive boundary value problems
J. J. Kohn, Louis Nirenberg · Communications on Pure and Applied Mathematics · 1965 · 436 citations