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On the Smoothness of the Invariant Torus of a Countable System of Difference Equations with Parameters

We establish sufficient conditions for the differentiability of the invariant torus of a countable system of linear difference equations defined on a finite-dimensional torus with respect to an angular variable and the parameter of the original system of equations.

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Bibliographic Details
Date:	2001
Main Authors:	Marchuk, N. A., Teplinsky, Yu. V., Марчук, H. А., Теплінський, Ю. В.
Format:	Article
Language:	Ukrainian English
Published:	Institute of Mathematics, NAS of Ukraine 2001
Online Access:	https://umj.imath.kiev.ua/index.php/umj/article/view/4343
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Journal Title:	Ukrains’kyi Matematychnyi Zhurnal
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