Invertible and normal composition operators on the Hilbert Hardy space of a half–plane

Valentin Matache

The search session has expired. Please query the service again.

Displaying similar documents to “Invertible and normal composition operators on the Hilbert Hardy space of a half–plane”

Compact composition operators and Carleson measure in the upper half-plane.

S. D. Sharma, Romesh Kumar (2000)

Extracta Mathematicae

Similarity:

Composition operators on vector-valued Hardy spaces.

S. D. Sharma, U. Bhanu (1999)

Extracta Mathematicae

Similarity:

Pseudodifferential operators and Hardy kernels on $L^{p} (𝐑^{+})$

Jeff E. Lewis, Cesare Parenti (1980)

Annali della Scuola Normale Superiore di Pisa - Classe di Scienze

Similarity:

An Analogue of a Hardy-Littlewood-Fejér Inequality for Upper Triangular Trace Class Operators.

Allen L. Shields (1983)

Mathematische Zeitschrift

Similarity:

Norms of composition operators on the Hardy space.

Appel, Matthew J., Bourdon, Paul S., Thrall, John J. (1996)

Experimental Mathematics

Similarity:

Some classical operators on Lorentz space.

C.J. NEUGEBAUER (1992)

Forum mathematicum

Similarity:

Hermitian composition operators on Hardy-Smirnov spaces

Gajath Gunatillake (2017)

Concrete Operators

Similarity:

Let Ω be an open simply connected proper subset of the complex plane and φ an analytic self map of Ω. If f is in the Hardy-Smirnov space defined on Ω, then the operator that takes f to f ⃘ φ is a composition operator. We show that for any Ω, analytic self maps that induce bounded Hermitian composition operators are of the form Φ(w) = aw + b where a is a real number. For ceratin Ω, we completely describe values of a and b that induce bounded Hermitian composition operators.

Exponentials of normal operators and commutativity of operators: a new approach

Mohammed Hichem Mortad (2011)

Colloquium Mathematicae

Similarity:

We present a new approach to the question of when the commutativity of operator exponentials implies that of the operators. This is proved in the setting of bounded normal operators on a complex Hilbert space. The proofs are based on some results on similarities by Berberian and Embry as well as the celebrated Fuglede theorem.

On the normality of operators.

Mecheri, Salah (2005)

Revista Colombiana de Matemáticas

Similarity:

Multiplier operators on product spaces

Hung Viet Le (2002)

Studia Mathematica

Similarity:

The author proves the boundedness for a class of multiplier operators on product spaces. This extends a result obtained by Lung-Kee Chen in 1994.

Polaroid type operators and compact perturbations

Chun Guang Li, Ting Ting Zhou (2014)

Studia Mathematica

Similarity:

A bounded linear operator T acting on a Hilbert space is said to be polaroid if each isolated point in the spectrum is a pole of the resolvent of T. There are several generalizations of the polaroid property. We investigate compact perturbations of polaroid type operators. We prove that, given an operator T and ε > 0, there exists a compact operator K with ||K|| < ε such that T + K is polaroid. Moreover, we characterize those operators for which a certain polaroid type property...

Composition operators and the Hilbert matrix

E. Diamantopoulos, Aristomenis Siskakis (2000)

Studia Mathematica

Similarity:

The Hilbert matrix acts on Hardy spaces by multiplication with Taylor coefficients. We find an upper bound for the norm of the induced operator.

Hardy Inequality in Variable Exponent Lebesgue Spaces

Diening, Lars, Samko, Stefan (2007)

Fractional Calculus and Applied Analysis

Similarity:

Mathematics Subject Classification: 26D10, 46E30, 47B38 We prove the Hardy inequality and a similar inequality for the dual Hardy operator for variable exponent Lebesgue spaces.