Journal of Functional Analysis · 2002 · 64 citations · 15 references
Spectral TheoryTopological SemigroupsElliptic EquationLinear OperatorEngineeringTransformation SemigroupsFunctional AnalysisSecond-order Elliptic OperatorsC0-semigroups AssociatedElliptic Function
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Barry Simon · Bulletin of the American Mathematical Society · 1982 · 903 citations · Full text
Perturbation of Dirichlet forms by measures
Peter Stollmann, J. Voigt · Potential Analysis · 1996 · 207 citations