Once more on positive commutators

Roman Drnovšek

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

Displaying similar documents to “Once more on positive commutators”

On p-absolutely summing operators acting on Banach lattices

J. Szulga (1985)

Studia Mathematica

Similarity:

Narrow operators and rich subspaces of Banach spaces with the Daugavet property

Vladimir M. Kadets, Roman V. Shvidkoy, Dirk Werner (2001)

Studia Mathematica

Similarity:

Let X be a Banach space. We introduce a formal approach which seems to be useful in the study of those properties of operators on X which depend only on the norms of the images of elements. This approach is applied to the Daugavet equation for norms of operators; in particular we develop a general theory of narrow operators and rich subspaces of spaces X with the Daugavet property previously studied in the context of the classical spaces C(K) and L₁(μ).

An absolute continuity for positive operators on Banach lattices.

Feldman, W., Piston, C., Piston, Calvin E. (1991)

International Journal of Mathematics and Mathematical Sciences

Similarity:

Composition of (E,2)-summing operators

Andreas Defant, Mieczysław Mastyło (2003)

Studia Mathematica

Similarity:

The Banach operator ideal of (q,2)-summing operators plays a fundamental role within the theory of s-number and eigenvalue distribution of Riesz operators in Banach spaces. A key result in this context is a composition formula for such operators due to H. König, J. R. Retherford and N. Tomczak-Jaegermann. Based on abstract interpolation theory, we prove a variant of this result for (E,2)-summing operators, E a symmetric Banach sequence space.

Almost periodicity of solutions of the equation $x^{'} (t) = A (t) x (t)$ with unbounded commuting operators

Vladimír Lovicar (1975)

Časopis pro pěstování matematiky

Similarity:

Interchangeability of unbounded linear operators: General theory of transmutativity

Miroslav Sova (1982)

Časopis pro pěstování matematiky

Similarity:

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...

Banach spaces of compact operators

Charles E. Cleaver (1972)

Colloquium Mathematicae

Similarity:

On differential operators with integral conditions.

Galakhov, E. (1997)

Memoirs on Differential Equations and Mathematical Physics

Similarity:

Operators on continuous function spaces and L1-spaces

Ryotaro Sato (1976)

Colloquium Mathematicae

Similarity:

Operators on some function spaces

Ryotaro Sato (1976)

Colloquium Mathematicae

Similarity:

On λ-commuting operators

John B. Conway, Gabriel Prǎjiturǎ (2005)

Studia Mathematica

Similarity:

For a scalar λ, two operators T and S are said to λ-commute if TS = λST. In this note we explore the pervasiveness of the operators that λ-commute with a compact operator by characterizing the closure and the interior of the set of operators with this property.