On the solvability of semilinear gradient operator equations

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

Curvature Functions for Compact 2-Manifolds

Jerry L. Kazdan, F. W. Warner · Annals of Mathematics · 1974 · 581 citations

Natural Sciences, Mathematics, Topology +9

An Infinite Dimensional Version of Sard's Theorem

Stephen T. Smale · American Journal of Mathematics · 1965 · 542 citations

Natural Sciences, Computer Science, Mathematics +5

Morse theory on Hilbert manifolds

Richard S. Palais · Topology · 1963 · 467 citations

Natural Sciences, Physics, Topology +10

Elements of Functional Analysis.

Robert G. Bartle, L. A. Lusternik, V. J. Sobolev et al. · American Mathematical Monthly · 1962 · 346 citations

Law, Mathematics, Systems Analysis +3