scientific article

zbMath0646.35031MaRDI QIDQ3789981

Abbas Bahri

Publication date: 1987

Full work available at URL: http://www.numdam.org/item?id=SEDP_1986-1987____A20_0

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zbMATH Keywords

existenceperturbationvariational formulationcritical pointsalgebraic topologyhomologyMorse indexhomotopyalgebraic geometrylevel setssuperlinearinfinitely many solutions

Mathematics Subject Classification ID

Nonlinear boundary value problems for linear elliptic equations (35J65) Variational methods applied to PDEs (35A15) Perturbation theory of linear operators (47A55) Methods of algebraic topology in functional analysis (cohomology, sheaf and bundle theory, etc.) (46M20) Perturbations in context of PDEs (35B20)

Related Items (2)

Harmonic functions with nonlinear Neumann boundary condition and their Morse indices ⋮ Characterization of solutions having finite Morse index for some nonlinear PDE with supercritical growth

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