Finite rank intermediate Hankel operators and the big Hankel operator.

Osawa, Tomoko

Displaying similar documents to “Finite rank intermediate Hankel operators and the big Hankel operator.”

Finite-rank intermediate Hankel operators on the Bergman space.

Nakazi, Takahiko, Osawa, Tomoko (2001)

International Journal of Mathematics and Mathematical Sciences

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Hankel forms and the Fock space.

Svante Janson, Jaak Peetre, Richard Rochberg (1987)

Revista Matemática Iberoamericana

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Generalizations of Hankel operators

Peetre, Jaak

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Products of Toeplitz operators and Hankel operators

Yufeng Lu, Linghui Kong (2014)

Studia Mathematica

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We first determine when the sum of products of Hankel and Toeplitz operators is equal to zero; then we characterize when the product of a Toeplitz operator and a Hankel operator is a compact perturbation of a Hankel operator or a Toeplitz operator and when it is a finite rank perturbation of a Toeplitz operator.

On Pták’s generalization of Hankel operators

Carmen H. Mancera, Pedro José Paúl (2001)

Czechoslovak Mathematical Journal

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In 1997 Pták defined generalized Hankel operators as follows: Given two contractions $T_{1} \in ℬ (ℋ_{1})$ and $T_{2} \in ℬ (ℋ_{2})$ , an operator $X ℋ_{1} \to ℋ_{2}$ is said to be a generalized Hankel operator if $T_{2} X = X T_{1}^{*}$ and $X$ satisfies a boundedness condition that depends on the unitary parts of the minimal isometric dilations of $T_{1}$ and $T_{2}$ . This approach, call it (P), contrasts with a previous one developed by Pták and Vrbová in 1988, call it (PV), based on the existence of a previously defined generalized Toeplitz operator. There seemed to be a strong...

On the S-norm of a Hankel form.

Jaak Peetre (1992)

Revista Matemática Iberoamericana

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On rank one elements

Robin Harte (1995)

Studia Mathematica

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Without the "scarcity lemma", two kinds of "rank one elements" are identified in semisimple Banach algebras.