Results 21 to 30 of about 172,888 (278)

Hypercyclicity of Composition Operators on Orlicz Function Spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2020
In this paper, we discuss the hypercyclic properties of composition operators on Orlicz function spaces. We give some different conditions under which a composition operator on Orlicz spaces is hyper-cyclic or not. Similarly, multiplication operators are
Jafari F., Kamali Z.
doaj   +1 more source

Operations on Hesitant Linguistic terms sets Induced By Archimedean Triangular Norms And Conorms

open access: yesInternational Journal of Computational Intelligence Systems, 2018
The aim of the paper is to discuss some new operations on hesitant fuzzy linguistic terms sets based on Archimedean t-norm and t-conorm. The advantage is that the operations on hesitant fuzzy linguistic terms sets are closed, by studying propositions of ...
Zhaoyan Li, Chenfang Zhao, Zheng Pei
doaj   +1 more source

On a Sum of More Complex Product-Type Operators from Bloch-Type Spaces to the Weighted-Type Spaces

open access: yesAxioms, 2023
The aim of the present paper is to completely characterize the boundedness and compactness of a sum operator defined by some more complex products of composition, multiplication, and mth iterated radial derivative operators from Bloch-type spaces to ...
Cheng-Shi Huang, Zhi-Jie Jiang
doaj   +1 more source

Extrapolation of operator-valued multiplication operators [PDF]

open access: yesQuaestiones Mathematicae, 2021
We discuss $\mathrm{L}^p$ fiber spaces which appear, e.g., as extrapolation spaces of unbounded multiplication operators which in turn are motivated, for instance, by non-autonomous evolution equations.
Budde, Christian, Heymann, Retha
openaire   +2 more sources

Volterra integral operators on a family of Dirichlet-Morrey spaces [PDF]

open access: yesOpuscula Mathematica, 2023
A family of Dirichlet-Morrey spaces \(\mathcal{D}_{\lambda,K}\) of functions analytic in the open unit disk \(\mathbb{D}\) are defined in this paper. We completely characterize the boundedness of the Volterra integral operators \(T_g\), \(I_g\) and the ...
Lian Hu, Xiaosong Liu
doaj   +1 more source

Multiplication Operators on Weighted Nakano (sss)

open access: yesJournal of Mathematics, 2020
In this article, we investigate the sufficient conditions on weighted Nakano sequence space to be premodular Banach (sss). We examine some topological and geometrical structures of the multiplication operators defined on weighted Nakano prequasi-normed ...
Awad A. Bakery   +2 more
doaj   +1 more source

Properties of multiplication operators on the space of functions of bounded φ-variation

open access: yesOpen Mathematics, 2021
In this paper, the functions u∈BVφ[0,1]u\in B{V}_{\varphi }\left[0,1] which define compact and Fredholm multiplication operators Mu{M}_{u} acting on the space of functions of bounded φ\varphi -variation are studied.
Castillo René E.   +2 more
doaj   +1 more source

Quasi-optimal multiplication of linear differential operators [PDF]

open access: yes, 2012
We show that linear differential operators with polynomial coefficients over a field of characteristic zero can be multiplied in quasi-optimal time. This answers an open question raised by van der Hoeven.Comment: To appear in the Proceedings of the 53rd ...
Benoit, Alexandre   +2 more
core   +6 more sources

On Some Properties of Cowen-Douglas Class of Operators

open access: yesJournal of Function Spaces, 2018
We will consider multiplication operators on a Hilbert space of analytic functions on a domain Ω⊂C. For a bounded analytic function φ on Ω, we will give necessary and sufficient conditions under which the complement of the essential spectrum of Mφ in φΩ ...
Parastoo Heiatian Naeini   +1 more
doaj   +1 more source

Extensions of nonclosable operators and multiplication of distributions

open access: yesЖурнал Белорусского государственного университета: Математика, информатика, 2019
In the paper some new constructions of extensions of nonclosable operators is proposed and several examples of applications are given. One of particular cases of the problem under consideration is the question on multiplication of distributions, a ...
Anatolij B. Antonevich   +1 more
doaj   +1 more source

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