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Abstract and applied analysis, ISSN 1085-3375, 5/2011, Volume 2011
Journal Article
Journal of Mathematical Analysis and Applications, ISSN 0022-247X, 08/2017, Volume 452, Issue 1, pp. 27 - 46
We prove the subnormality of an operator-weighted composition operator whose symbol is a transformation of a discrete measure space and whose weights are multiplication operators in L2-spaces... 
Quasinormal operator | Operator-weighted composition operator | Subnormal operator
Journal Article
Journal of functional analysis, ISSN 0022-1236, 2011, Volume 261, Issue 3, pp. 831 - 860
A weighted composition operator C ψ , φ takes an analytic map f on the open unit disc of the complex plane to the analytic map ψ ⋅ f ∘ φ where φ... 
Invertible operators | Spectra | Weighted composition operators | Hardy space | MATHEMATICS | H-2
Journal Article
Journal of mathematical analysis and applications, ISSN 0022-247X, 2008, Volume 345, Issue 1, pp. 40 - 52
The boundedness and compactness of the products of Volterra type operators and composition operators from the space of bounded analytic functions and the Bloch... 
Bounded analytic functions | Bloch space | Volterra operator | Composition operator | Zygmund space
Journal Article
Journal of mathematical analysis and applications, ISSN 0022-247X, 2018, Volume 467, Issue 2, pp. 1153 - 1162
...ψ,φ is normaloid. We also determine the spectral radius, essential spectral radius, and essential norm for a class of non-power-compact composition operators whose symbols have Denjoy–Wolff point in D. When the Denjoy–Wolff point... 
Weighted composition operator | Hyponormal operator | Convexoid operator | Normaloid operator | Spectral radius | Composition operator
Journal Article
Advances in Mathematics, ISSN 0001-8708, 03/2015, Volume 273, pp. 149 - 187
... “composition operators” acting on L1(S) and associated with a Borel function φ:S→B¯, by first taking one of four natural extensions of f∈L1(S) to a function on B... 
Compactness | Composition operator | Boundedness | MATHEMATICS
Journal Article
Proceedings of the National Academy of Sciences, India Section A: Physical Sciences, ISSN 0369-8203, 9/2019, Volume 89, Issue 3, pp. 509 - 516
Journal Article
Integral equations and operator theory, ISSN 1420-8989, 2018, Volume 90, Issue 1, pp. 1 - 12
By using the Schur test, we give some upper and lower estimates on the norm of a composition operator on $$\mathcal {H}^2... 
47B38 | Secondary: 11M36 | 37C30 | Analysis | Schur test | Composition operator | Zeta function | Mathematics | Dirichlet series | Primary: 47B33 | Hardy space | MATHEMATICS | SERIES | HILBERT-SPACE | H-2
Journal Article
Journal of mathematical analysis and applications, ISSN 0022-247X, 2019, Volume 480, Issue 1, p. 123368
.... We present several sufficient conditions on F guaranteeing that the only multiplication operators on F that are surjective isometries are scalar multiples of the identity... 
Multiplication operators | Surjective isometries | Function spaces | Birkhoff orthogonality | Nearly strictly convex spaces | SPACE | MATHEMATICS | WEIGHTED COMPOSITION OPERATORS | MATHEMATICS, APPLIED | Surjective isometrics | UNITARY | Mathematics - Functional Analysis
Journal Article
Israel Journal of Mathematics, ISSN 0021-2172, 1/2019, Volume 229, Issue 1, pp. 487 - 500
Avicou, Chalendar and Partington proved in 2015 [5] that an (unbounded) operator Af = G·f' on the classical Hardy space generates a C 0 semigroup of composition operators if and only if it generates a quasicontractive semigroup... 
Algebra | Analysis | Theoretical, Mathematical and Computational Physics | Mathematics, general | Mathematics | Group Theory and Generalizations | Applications of Mathematics | MATHEMATICS | SEMIGROUPS | HARDY | SPACES | Mathematics - Functional Analysis
Journal Article
Journal of mathematical analysis and applications, ISSN 0022-247X, 2009, Volume 349, Issue 2, pp. 596 - 610
A complete picture on the boundedness and compactness of the products of integral-type operators and composition operators between Bloch-type spaces... 
Integral operator | Bloch space | Composition operator | MATHEMATICS, APPLIED | C-N | MIXED-NORM SPACES | POLYDISK | UNIT BALL | MATHEMATICS | RIEMANN-STIELTJES OPERATORS | BOUNDED MEAN-OSCILLATION | EXTENDED CESARO OPERATORS | HARDY | COMPACTNESS | BERGMAN SPACES
Journal Article
Integral Equations and Operator Theory, ISSN 0378-620X, 12/2011, Volume 71, Issue 4, pp. 575 - 582
We show that the symmetrized product AB + BA of two positive operators A and B is positive if and only if $${f(A+B)\leq f(A)+f(B... 
Secondary 47B10 | Primary 47A63 | operator convex function | Analysis | subadditivity | Operator monotone function | Mathematics | composition of functions | 47A30 | Jordan product | MATHEMATICS | INEQUALITIES | CONVEX-FUNCTIONS
Journal Article
Transactions of the American Mathematical Society, ISSN 0002-9947, 7/2013, Volume 365, Issue 7, pp. 3593 - 3612
We consider the component problem on the sets of weighted composition operators on the spaces of bounded harmonic and analytic functions on the open unit disk with the operator norms, respectively... 
Essential norm | The space of bounded analytic functions | Weighted composition operator | Path connected component | The space of bounded harmonic functions
Journal Article
Journal of Inequalities and Applications, ISSN 1025-5834, 12/2018, Volume 2018, Issue 1, pp. 1 - 18
Journal Article
Journal of Mathematical Analysis and Applications, ISSN 0022-247X, 08/2018, Volume 464, Issue 1, pp. 101 - 118
We study the complex symmetric structure of weighted composition operators of the form Wψ,φ... 
Bergman space | Weighted composition operator | Conjugation | Complex symmetry | Hardy space | MATHEMATICS | MATHEMATICS, APPLIED | VARIABLES
Journal Article
Journal of Mathematical Analysis and Applications, ISSN 0022-247X, 2008, Volume 338, Issue 2, pp. 1282 - 1295
The boundedness and compactness of the generalized composition operator on Zygmund spaces and Bloch type spaces are investigated in this paper. 
Bloch type space | Zygmund space | Composition operator | MATHEMATICS | MATHEMATICS, APPLIED | composition operator | C-N | UNIT BALL
Journal Article
Journal of mathematical analysis and applications, ISSN 0022-247X, 2019, Volume 471, Issue 1-2, pp. 211 - 238
Journal Article
OPERATORS AND MATRICES, ISSN 1846-3886, 03/2019, Volume 13, Issue 1, pp. 1 - 18
This paper is a follow-up contribution to our work [10] where we studied some spectral properties of the differential operator D acting between generalized Fock spaces F-(m,F-p) and F-(m,F-q... 
MATHEMATICS | essential norm | WEIGHTED COMPOSITION OPERATORS | composition operator | compact | INTEGRATION OPERATORS | Generalized Fock spaces | SPACES | differential operator | BERGMAN | bounded | norm
Journal Article
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