F-hypercyclic operators on Fréchet spaces
Author(s) -
Marko Kostić
Publication year - 2019
Publication title -
publications de l institut mathematique
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.246
H-Index - 17
eISSN - 1820-7405
pISSN - 0350-1302
DOI - 10.2298/pim1920001k
Subject(s) - mathematics , fréchet space , section (typography) , linear operators , pure mathematics , discrete mathematics , interpolation space , functional analysis , mathematical analysis , computer science , biochemistry , chemistry , bounded function , gene , operating system
We investigate F-hypercyclicity of linear, not necessarily continuous, operators on Frechet spaces. The notion of lower (mn)-hypercyclicity seems to be new and not considered elsewhere even for linear continuous operators acting on Frechet spaces. We pay special attention to the study of q-frequent hypercyclicity, where q > 1 is an arbitrary real number. We present several new concepts and results for lower and upper densities in a separate section, providing also a great number of illustrative examples and open problems.
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