Results 11 to 20 of about 3,589,565 (274)

New Inequalities of the Kantorovich Type for Bounded Linear Operators in Hilbert Spaces [PDF]

open access: yes, 2006
Some new inequalities of the Kantorovich type are established. They hold for larger classes of operators and subsets of complex numbers than considered before in the literature and provide refinements of the classical results in the case when the ...
Dragomir, Sever S
core   +6 more sources

Upper Bounds for the Euclidean Operator Radius and Applications [PDF]

open access: yes, 2006
The main aim of the present paper is to establish various sharp upper bounds for the Euclidean operator radius of an n−tuple of bounded linear operators on a Hilbert space.
Dragomir, Sever S
core   +6 more sources

Some Inequalities for the Euclidean Operator Radius of Two Operators in Hilbert Spaces [PDF]

open access: yes, 2006
Some sharp bounds for the Euclidean operator radius of two bounded linear operators in Hilbert spaces are given. Their connection with Kittaneh’s recent results which provide sharp upper and lower bounds for the numerical radius of linear operators ...
Dragomir, Sever S
core   +7 more sources

Continuity of Bounded Linear Operators on Normed Linear Spaces [PDF]

open access: yesFormalized Mathematics, 2018
Summary In this article, using the Mizar system [1], [2], we discuss the continuity of bounded linear operators on normed linear spaces. In the first section, it is discussed that bounded linear operators on normed linear spaces are uniformly continuous and Lipschitz continuous.
Kazuhisa Nakasho   +2 more
openaire   +3 more sources

Algebraic reflexivity of isometry groups and automorphism groups of some operator structures [PDF]

open access: yes, 2013
We establish the algebraic re exivity of three isometry groups of operator structures: The group of all surjective isometries on the unitary group, the group of all surjective isometries on the set of all positive invertible operators equipped with ...
Botelho, Fernanda   +2 more
core   +2 more sources

Condition pseudospectrum in non-Archimedean Banach spaces [PDF]

open access: yesJournal of Mahani Mathematical Research
In this article, we introduce and study the condition pseudospectrum of bounded linear operator pencils on non-Archimedean Banach spaces. We obtain a characterization of the condition pseudospectrum of bounded linear operator pencils on non-Archimedean ...
Jawad Ettayb
doaj   +1 more source

Some special characterisations of Fredholm operators in Banach space

open access: yesBibechana, 2014
A bounded linear operator which has a finite index and which is defined on a Banach space is often referred to in the literature as a Fredholm operator. Fredholm operators are important for a variety of reasons, one being the role that their index plays
Mahendra Shahi
doaj   +3 more sources

A maximal theorem for holomorphic semigroups. [PDF]

open access: yes, 2005
Let X be a closed linear subspace of the Lebesgue space L^p(Omega ; mu); let -A be an invertible linear operator that is the generator of abounded holomorphic semigroup T_t on X.
Doust, Ian, Blower, Gordon
core   +4 more sources

Fuzzy Bounded and Continuous Linear Operators on Standard Fuzzy Normed Spacesa [PDF]

open access: yesEngineering and Technology Journal, 2015
In this paper we introduce the definition of standard fuzzy normed space, then we discuss several properties after we give an example to illustrate this notion.
Jehad R. Kider, Rami M. Jameel
doaj   +1 more source

About Riesz theory of compact operators

open access: yesBibechana, 2012
In this paper, it is shown that every compact operators are bounded and continuous. The bounded and continuous properties of an operator is sufficient for a Riesz operator.
Nagendra Pd Sah
doaj   +3 more sources

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