G. S. Rychkov, “The limit cycles of the equation <nobr>$u(x+1)du=(-x+ax^2+bxu+cu+du^2)dx$</nobr>”, Differ. Uravn., 1972, Volume 8, Number 12,Pages <nobr>2257

JOURNALS // Differentsial'nye Uravneniya // Archive

Differ. Uravn., 1972 Volume 8, Number 12, Pages 2257–2259 (Mi de1761)

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The limit cycles of the equation $u(x+1)du=(-x+ax^2+bxu+cu+du^2)dx$

G. S. Rychkov

Moscow

UDC: 517.925.12

Received: 21.06.1971

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