Linear dynamical systems on Hilbert spaces: typical properties and explicit examples

نویسندگان

چکیده

We solve a number of questions pertaining to the dynamics linear operators on Hilbert spaces, sometimes by using Baire category arguments and by constructing explicit examples. In particular, we prove following results. (i) A typical hypercyclic operator is not topologically mixing, has no eigenvalues admits non-trivial invariant measure, but densely distributionally chaotic. (ii) {upper-triangular} with coefficients modulus $1$ diagonal ergodic in Gaussian sense, whereas form ``diagonal plus backward unilateral weighted shift is only countably many unimodular eigenvalues; it {not} sense. (iii) There exist space which are chaotic $\mathcal U$-frequently frequently hypercyclic, Hilbert {chaotic and} ergodic, mixing hypercyclic. We complement our results investigating descriptive complexity some natural classes defined dynamical properties.

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ژورنال

عنوان ژورنال: Memoirs of the American Mathematical Society

سال: 2021

ISSN: ['1947-6221', '0065-9266']

DOI: https://doi.org/10.1090/memo/1315