Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Krzysztof Piszczek"'
Autor:
Paweł Foralewski, Krzysztof Piszczek
Publikováno v:
Journal of Inequalities and Applications, Vol 2023, Iss 1, Pp 1-17 (2023)
Abstract We study Orlicz sequence algebras and their properties. In particular, we fully characterize biflat and biprojective Orlicz sequence algebras as well as weakly amenable and approximately (semi-)amenable Orlicz sequence algebras. As a consequ
Externí odkaz:
https://doaj.org/article/1d9a5e1a4a3f49eca45a4762dd8931ef
Autor:
Krzysztof Piszczek, Adam Przestacki
Publikováno v:
Archiv der Mathematik. 118:393-398
The aim of this note is to prove that there are no topologically transitive operators in the noncommutative Schwartz space.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cda86fcd3928e90ab89f894cd6c9a5df
https://doi.org/10.1007/s00013-022-01708-2
https://doi.org/10.1007/s00013-022-01708-2
Autor:
Krzysztof Piszczek
Publikováno v:
Communications in Contemporary Mathematics.
We characterize — in terms of the Köthe matrix — amenable Köthe echelon algebras of order zero and infinity.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd05df5bc2e3df71971f09d3d2516d52
https://doi.org/10.1142/s0219199722500717
https://doi.org/10.1142/s0219199722500717
Autor:
Krzysztof Piszczek
Publikováno v:
Annals of Functional Analysis. 13
We give a characterization of those vector-valued Köthe echelon algebras which are contractible.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba8f81d2ab77c5fc803ef158c183baf8
https://doi.org/10.1007/s43034-022-00207-3
https://doi.org/10.1007/s43034-022-00207-3
Autor:
Tomasz Ciaś, Krzysztof Piszczek
Publikováno v:
Mathematische Nachrichten. 294:486-517
We provide a study of Kothe sequence algebras. These are Frechet sequence algebras which can be viewed as abstract analogoues of algebras of smooth or holomorphic functions. Of particular treatment are the following properties: unitality, m‐convexi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::096d3a95a64fa2b69655078944c01377
https://doi.org/10.1002/mana.201900121
https://doi.org/10.1002/mana.201900121
Autor:
Krzysztof Piszczek
Publikováno v:
Results in Mathematics. 77
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8efb0cebbc2ed8097e632aa99040363
https://doi.org/10.1007/s00025-022-01642-3
https://doi.org/10.1007/s00025-022-01642-3
Publikováno v:
Banach Journal of Mathematical Analysis. 16
We introduce a notion of a topologically flat locally convex module, which extends the notion of a flat Banach module and which is well adapted to the nonmetrizable setting (and especially to the setting of DF-modules). Using this notion, we introduc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::335c0f3fb3ec33c07aab8c11eb209007
https://doi.org/10.1007/s43037-021-00163-5
https://doi.org/10.1007/s43037-021-00163-5
Autor:
Krzysztof Piszczek
Publikováno v:
Quaestiones Mathematicae. 43:493-505
In this note we investigate contractibility properties in the class of the so-called DF-algebras. We also give a complete characterization of contractible Kothe co-echelon algebras.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fe42766fe038420a731171176a930063
https://doi.org/10.2989/16073606.2019.1579765
https://doi.org/10.2989/16073606.2019.1579765
Autor:
Krzysztof Piszczek
Publikováno v:
Mathematische Nachrichten. 292:1333-1348
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::488bdad76dc9ec658b354e1a062c272f
https://doi.org/10.1002/mana.201700429
https://doi.org/10.1002/mana.201700429
Autor:
Adam Przestacki, Krzysztof Piszczek
Publikováno v:
Revista de la Real Academia de Ciencias Exactas, Físicas y Naturales. Serie A. Matemáticas. 115
We prove that every hypercyclic weighted composition operator acting on the space of smooth functions on the real line is already frequently hypercyclic. Moreover, for a given frequently hypercyclic weighted composition operator $$C_{w,\psi }$$ we sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1ba63c378e4cfef0115fc2923363ef3
https://doi.org/10.1007/s13398-020-00995-0
https://doi.org/10.1007/s13398-020-00995-0