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zbMath0712.34057MaRDI QIDQ3497408

V. L. Khatskevich, Victor A. Khatskevich

Publication date: 1989

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

zbMATH Keywords

saddle point existence and unicity of an \(\omega \) -periodic solution

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Hamilton's equations (70H05) Nonlinear differential equations in abstract spaces (34G20)

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