scientific article; zbMATH DE number 6948191

zbMath1413.34154MaRDI QIDQ4685202

Shapour Heidarkhani, Abdollah Nazari, Ghasem Alizadeh Afrouzi

Publication date: 5 October 2018

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

zbMATH Keywords

variational methodscritical point theorydamped vibration problemnon-trivial periodic solution

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Set-valued operators (47H04) Variational principles in infinite-dimensional spaces (58E30)

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