Essential Norm of Difference of Composition Operators from Weighted Bergman Spaces to Bloch-Type Spaces [PDF]
Journal of Function Spaces, 2018 We compute upper and lower bounds for essential norm of difference of composition operators acting from weighted Bergman spaces to Bloch-type spaces.
Ram Krishan +2 more
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The essential norm of bounded diagonal infinite matrices acting on Banach sequence spaces [PDF]
Demonstratio MathematicaWe calculate the essential norm of bounded diagonal infinite matrices acting on Köthe sequence spaces. As a consequence of our result, we obtain a recent criteria for the compactness of multiplication operator acting on Köthe sequence spaces.
Fernández Julio C. Ramos +2 more
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On the Essential Norm of Multiplications Operators Acting on Cesàro Sequence Spaces [PDF]
Journal of Function Spaces, 2019 In this article, we establish an important property about the growth of sequences in the dual space of Cesàro sequence spaces. As a consequence of this fact, we calculate the measure of noncompactness or the essential norm of the multiplication operator ...
Julio C. Ramos-Fernández +2 more
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The essential norm of a composition operator mapping into Qk type spaces [PDF]
Journal of Function Spaces and Applications, 2008 An asymptotic formula for the essential norm of the composition operator Cφ(f):=f∘φ, induced by an analytic self-map φ of the unit disc, mapping from the α-Bloch space ℬα or the Dirichlet type space Dαp into Qk(p,q) is established in terms of an integral
Marko Kotilainen, Jouni Rättyä
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Essential Norm of Products of Volterra-Type Operators and Composition Operators on Iterated Banach-Type Spaces [PDF]
AxiomsLet H(D) be the set of analytic functions on the open unit disk D. For n∈N0:=N∪{0}, define the iterated weighted-type Banach space Vn:=f∈H(D):supz∈D(1−|z|2)|f(n)(z)|
Rabab Alyusof +2 more
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On the Norm of Certain Weighted Composition Operators on the Hardy Space [PDF]
Abstract and Applied Analysis, 2009 We obtain a representation for the norm of certain compact weighted composition operator 𝐶𝜓,𝜑 on the Hardy space 𝐻2, whenever 𝜑(𝑧)=𝑎𝑧+𝑏 and 𝜓(𝑧)=𝑎𝑧−𝑏. We also estimate the norm and essential norm of a class of noncompact weighted composition operators ...
M. Haji Shaabani, B. Khani Robati
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The essential norm of operators in the Toeplitz algebra on $A^p(B_n)$ [PDF]
Indiana University Mathematics Journal, 2007 Fil: Suarez, Fernando Daniel. Consejo Nacional de Investigaciones Cientificas y Tecnicas. Oficina de Coordinacion Administrativa Saavedra 15.
Suarez, Fernando Daniel
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Volterra integral operators on a family of Dirichlet-Morrey spaces [PDF]
Opuscula 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
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Exact essential norm of generalized Hilbert matrix operators on classical analytic function spaces [PDF]
, 2022 We compute the exact value of the essential norm of ageneralized Hilbert matrix operator acting on weightedBergman spaces Apv and weighted Banach spaces H∞v ofanalytic functions, where v is a general radial weight. Inparticular, we obtain the exact value
S. Miihkinen +8 more
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On the compactness and the essential norm of operators defined by infinite tridiagonal matrices
Concrete Operators, 2023 In this article, all sequences u{\boldsymbol{u}}, v{\boldsymbol{v}}, and w{\boldsymbol{w}} that define continuous and compact tridiagonal operators Tu,v,w{T}_{u,v,w} acting on the weighted sequence space lβ2{l}_{\beta }^{2} were characterized ...
Caicedo Alexander +2 more
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