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JOURNALS // Matematicheskii Sbornik // Archive

Mat. Sb., 2017 Volume 208, Number 5, Pages 38–62 (Mi sm8809)

This article is cited in 3 papers

Baire classes of Lyapunov invariants

V. V. Bykov

Lomonosov Moscow State University, Faculty of Mechanics and Mathematics

Abstract: It is shown that no relations exist (apart from inherent ones) between Baire classes of Lyapunov transformation invariants in the compact-open and uniform topologies on the space of linear differential systems.
It is established that if a functional on the space of linear differential systems with the compact-open topology is the repeated limit of a multisequence of continuous functionals, then these can be chosen to be determined by the values of system coefficients on a finite interval of the half-line (one for each functional).
It is proved that the Lyapunov exponents cannot be represented as the limit of a sequence of (not necessarily continuous) functionals such that each of these depends only on the restriction of the system to a finite interval of the half-line.
Bibliography: 28 titles.

Keywords: linear differential systems, asymptotic equivalence, Lyapunov exponents, Baire classes.

UDC: 517.926.4

MSC: Primary 34D08; Secondary 34A30

Received: 01.09.2016 and 06.12.2016

DOI: 10.4213/sm8809


 English version:
Sbornik: Mathematics, 2017, 208:5, 620–643

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© Steklov Math. Inst. of RAS, 2024