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Article

О топологической классификации потоков Морса-Смейла на поверхностях при помощи функции Ляпунова

We introduce the denition of consistent equivalence of Meyer ξ -functions for Morse- Smale ows on surfaces (that are Lyapunov funñtions) and state that consistent equivalence of ξ -functions is necessary and sucient condition for such ows.