Kernel operators and their boundedness from weighted Sobolev space to weighted Lebesgue space

Weighted differentiation composition operators from the logarithmic Bloch space to the weighted-type space

The boundedness of the weighted differentiation composition operator from the logarithmic Bloch space to the weighted-type space is characterized in terms of the sequence (zn)n∈N0 . An asymptotic estimate of the essential norm of the operator is also given in terms of the sequence, which gives a characterization for the compactness of the operator.

Generalized Weighted Composition Operators From Logarithmic Bloch Type Spaces to $ n $'th Weighted Type Spaces

Let $ mathcal{H}(mathbb{D}) $ denote the space of analytic functions on the open unit disc $mathbb{D}$. For a weight $mu$ and a nonnegative integer $n$, the $n$'th weighted type space $ mathcal{W}_mu ^{(n)} $ is the space of all $fin mathcal{H}(mathbb{D}) $ such that $sup_{zin mathbb{D}}mu(z)left|f^{(n)}(z)right|begin{align*}left|f right|_{mathcal{W}_...

Fredholm Weighted Composition Operators on Dirichlet Space

Let H be a Hilbert space of analytic functions on the unit disk D. For an analytic function ψ on D, we can define the multiplication operator Mψ : f → ψf, f ∈ H. For an analytic selfmapping φ of D, the composition operator Cφ defined on H as Cφf f ◦ φ, f ∈ H. These operators are two classes of important operators in the study of operator theory in function spaces 1–3 . Furthermore, for ψ and φ,...

Composition Operators from the Weighted Bergman Space to the nth Weighted Spaces on the Unit Disc

Boundedness of Projection Operators and Cesàro Means in Weighted L Space on the Unit Sphere

For the weight function Qd+1 i=1 |xi| 2κi on the unit sphere, sharp local estimates of the orthogonal projection operators are obtained and used to prove the convergence of the Cesàro (C, δ) means in the weighted L space for δ below the critical index. Similar results are also proved for corresponding weight functions on the unit ball and on the simplex.