Mironenko reflecting function

In applied mathematics, the reflecting function of a differential system connects the past state of the system with the future state of the system by the formula The concept of the reflecting function was introduced by Uladzimir Ivanavich Mironenka.

Definition

For the differential system with the general solution in Cauchy form, the Reflecting Function of the system is defined by the formula

Application

If a vector-function is -periodic with respect to , then is the in-period transformation (Poincaré map) of the differential system Therefore the knowledge of the Reflecting Function give us the opportunity to find out the initial dates of periodic solutions of the differential system and investigate the stability of those solutions.

For the Reflecting Function of the system the basic relation

is holding.

Therefore we have an opportunity sometimes to find Poincaré map of the non-integrable in quadrature systems even in elementary functions.

Literature

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