Positive Solutions of Semilinear Differential Equations with Singularities

Dual variational methods in critical point theory and applications

Antonio Ambrosetti, Paul H. Rabinowitz · Journal of Functional Analysis · 1973 · 4.4K citations

Natural Sciences, Mathematics, Physics +14

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

Natural Sciences, Mathematics, Physics +10

Fixed Point Equations and Nonlinear Eigenvalue Problems in Ordered Banach Spaces

Herbert Amann · SIAM Review · 1976 · 1.9K citations

Natural Sciences, Mathematics, Computational Mechanics +16

On the Existence of Positive Solutions of Semilinear Elliptic Equations

Pierre‐Louis Lions · SIAM Review · 1982 · 659 citations

Natural Sciences, Mathematics, Differential Equations +10

TOPOLOGICAL METHODS IN THE THEORY OF NON-LINEAR INTEGRAL EQUATIONS

Frank Smithies · Journal of the London Mathematical Society · 1966 · 590 citations

Natural Sciences, Mathematics, Physics +10