SIAM Journal on Numerical Analysis · 1967 · 18 citations · 1 references
Natural SciencesComputational EngineeringFinite Element AnalysisBoundary ConditionsEigenvalue ProblemsOperator TheoryPerturbation MethodsPerturbation TheorySpectral TheoryEigenfunction ExpansionsEigenvalues Of The LaplacianElliptic FunctionsElliptic Partial Differential EquationsOperators
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