Applied Mathematics Letters · 1999 · 16 citations · 14 references
Natural SciencesMathematicsDifferential EquationsDynamical SystemsBoundary-value ProblemsEigenvalue ProblemsInitial Value ProblemsOperator TheoryPartial Differential EquationsSpectral TheoryEigenfunction ExpansionsFunctional EquationsMatrix Eigenvalue ProblemsNonlinear Eigenvalue ProblemsStability Of Functional Differential EquationsSturm - Liouville TheorySturm-liouville Theory
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Positive Solutions of Operator Equations.
A. R. Brodsky, M. A. Krasnosel’skii, Richard E. Flaherty et al. · American Mathematical Monthly · 1967 · 2.1K citations