On a modification in the averaging principle for degenerate equations

zbMath0897.34041MaRDI QIDQ1377935

Mikhail Kamenskii

Publication date: 19 October 1998

Published in: Doklady Mathematics (Search for Journal in Brave)

zbMATH Keywords

periodic solutionsaveraging principledegenerate equationsPoincaré indexBogolyubov theorems

Mathematics Subject Classification ID

Periodic solutions to ordinary differential equations (34C25) Averaging method for ordinary differential equations (34C29)

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