On multiple solutions of a semilinear Schrödinger equation with periodic potential

Dual variational methods in critical point theory and applications

Antonio Ambrosetti, Paul H. Rabinowitz · Journal of Functional Analysis · 1973 · 4.3K citations

Numerical Analysis, Engineering, Variational Analysis +3

A Relation Between Pointwise Convergence of Functions and Convergence of Functionals

Élliott H. Lieb · Proceedings of the American Mathematical Society · 1983 · 1.2K citations

Functional Analysis

On the existence of bounded Palais–Smale sequences and application to a Landesman–Lazer-type problem set on <i>ℝ^N</i>

Louis Jeanjean · Proceedings of the Royal Society of Edinburgh Section A Mathematics · 1999 · 829 citations

Engineering, Variational Analysis, Riemann-hilbert Problem +9

Ground state solutions for some indefinite variational problems

Andrzej Szulkin, Tobias Weth · Journal of Functional Analysis · 2009 · 457 citations

Calculus Of Variation, Ground State Solutions, Variational Analysis

Generalized linking theorem with an application to a semilinear Schrödinger equation

Wojciech Kryszewski, Andrzej Szulkin · Advances in Differential Equations · 1998 · 316 citations · Full text

Spectral Theory, Elliptic Equation, Engineering +9