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zbMath0728.47042MaRDI QIDQ3352033

P. S. Milojević

Publication date: 1990

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

Morse theory densely defined linear operator pseudo A-proper finite-dimensional topological degree weak periodic solutions of hyperbolic equations and systems

Mathematics Subject Classification ID

Equations involving nonlinear operators (general) (47J05) Periodic solutions to PDEs (35B10) Second-order nonlinear hyperbolic equations (35L70) Degree theory for nonlinear operators (47H11) Degree, winding number (55M25) Higher-order nonlinear hyperbolic equations (35L75)

Related Items (1)

Periodic solutions of some semilinear wave equations and systems: a survey.

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