Transactions of the American Mathematical Society · 1968 · 13 citations · 0 references
Natural SciencesMathematicsDifferential EquationsBoundary ConditionsBoundary-value ProblemsOperator TheoryPartial Differential EquationsRegular SolutionsWeak FormulationElliptic Boundary-value ProblemsNeumann Boundary ConditionsRegularity TheoryStrong Boundary ConditionsWeak Boundary Conditions