Baire classes of Lyapunov invariants

V. V. Bykov

Sbornik. Mathematics, Tome 208 (2017) no. 5, pp. 620-643

Résumé

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.

Détail

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

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