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Boundary-Value Problems for the Lyapunov Equation in Banach Spaces


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Abstract

We propose an approach to the construction of solutions and quasisolutions of a boundary-value problem for the Lyapunov equation in a Banach space. If the necessary and sufficient conditions for the solvability of this boundary-value problem are satisfied, then the corresponding solutions of the problem are constructed by using the generalized inverse operator. As an example, we consider the problem in the space of bounded sequences with countably dimensional matrices.

About the authors

E. V. Panasenko

Zaporizhzhya National University

Author for correspondence.
Email: panasenko.yevgeniy@gmail.com
Ukraine, Zhukovs’kyi Str., 66, Zaporizhzhya, 69600

O. O. Pokutnyi

Institute of Mathematics, Ukrainian National Academy of Sciences; Shevchenko Kyiv National University Ukraine

Email: panasenko.yevgeniy@gmail.com
Ukraine, Tereshchenkivs’ka Str., 3, Kyiv, 01004; Acad. Glushkov Av. 4e, Kyiv, 03127

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