2025/01/01 by Michael Blank, Blank, Michael
Mathematics · #37B05 #37B10 #37B65 #Dynamical Systems (math.DS) #FOS: Mathematics #Mathematical Dynamics and Fractals
paper · pdf · doi:10.48550/arxiv.2501.00834
openalex publication_date 2025/01/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We extend the single-perturbation approach (developed in our earlier publications for the case of a single map) to the analysis of the shadowing property for semigroups of endomorphisms. Our approach allows to give a constructive representation for a true trajectory which shadows a given pseudo-trajectory. One of the main motivations is the question of inheritance: does the presence of shadowing for all generators of a semigroup imply shadowing for the semigroup and vice versa. Somewhat surprisingly, the answer to these questions is generally negative. Moreover, the situation with shadowing turns out to be quite different in a semigroup and in a non-autonomous system, despite the fact that the latter can be represented as a single branch of the former.