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pro vyhledávání: '"KASPRZAK, PIOTR"'
Autor:
Bugajewska, Daria, Kasprzak, Piotr
The aim of this paper is to give the answer to the problem of characterization of acting conditions (necessary as well as sufficient) for composition operators in some sequence spaces. We also characterize their boundedness and local boundedness. We
Externí odkaz:
http://arxiv.org/abs/2407.14176
Autor:
Bugajewska, Daria, Kasprzak, Piotr
The main goal of this note is to characterize the necessary and sufficient conditions for a composition operator to act between spaces of mappings of bounded Wiener variation in a normed-valued setting. The necessary and sufficient conditions for loc
Externí odkaz:
http://arxiv.org/abs/2407.14169
In this paper we provide a full characterization of linear integral operators acting from the space of functions of bounded Jordan variation to the space of functions of bounded Schramm variation in terms of their generating kernels.
Comment: Th
Comment: Th
Externí odkaz:
http://arxiv.org/abs/2310.08918
The aim of the paper is to characterize (pre)compactness in the spaces of Lipschitz/H\"older continuous mappings acting from a compact metric space to a normed space. To this end some extensions and generalizations of already existing compactness cri
Externí odkaz:
http://arxiv.org/abs/2205.04543
In this paper we prove two new abstract compactness criteria in normed spaces. To this end we first introduce the notion of an equinormed set using a suitable family of semi-norms on the given normed space satisfying some natural conditions. Those co
Externí odkaz:
http://arxiv.org/abs/2111.10547
Akademický článek
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Autor:
Dabbaghi Varnosfaderani, Shirin, Kasprzak, Piotr, Badirova, Aytaj, Krimmel, Ralph, Pohl, Christof, Yahyapour, Ramin
Publikováno v:
In Information Sciences January 2024 656
Autor:
Gomółka, Krystyna, Kasprzak, Piotr
Publikováno v:
Annales Universitatis Mariae Curie-Skłodowska, Sectio H Oeconomia. LVI(2):21-39
Externí odkaz:
https://www.ceeol.com/search/article-detail?id=1083038
We investigate leaky integrate-and-fire models (LIF models for short) driven by Stepanov and $\mu$-almost periodic functions. Special attention is paid to the properties of a firing map and its displacement, which give information about the spiking b
Externí odkaz:
http://arxiv.org/abs/1610.04434
Publikováno v:
Zeitschrift f\"ur Analysis und ihre Anwendungen (ZAA), 36, (2017), 393-417
In this paper we present some new results regarding the solvability of nonlinear Hammerstein integral equations in a special cone of continuous functions. The proofs are based on a certain fixed point theorem of Leggett and Williams type. We give an
Externí odkaz:
http://arxiv.org/abs/1607.01836