Mathematische Annalen · 1972 · 81 citations · 11 references
Natural SciencesMathematicsPhysicsDifferential EquationsDynamical SystemsMathematical PhysicsBoundary ConditionsEigenvalue ProblemsPartial Differential EquationsPerturbation MethodsSpectral TheoryGeneralized Eigenvalue ProblemsLinear Eigenvalue ProblemsMatrix Eigenvalue ProblemsNonlinear Eigenvalue ProblemsNonlinear Spectral Problems
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Topological Methods in the Theory of Nonlinear Integral Equations.
E. H. Rothe, M. A. Krasnosel’skii, A. H. Armstrong et al. · American Mathematical Monthly · 1968 · 2K citations
Variational Methods for the Study of Nonlinear Operators
E. H. Rothe, M. M. Vaĭnberg, L. M. Kantorovich et al. · American Mathematical Monthly · 1966 · 842 citations
Lusternik-Schnirelman theory on Banach manifolds
Richard S. Palais · Topology · 1966 · 341 citations