Results 11 to 20 of about 24,858 (293)

Maximal commutators and commutators of potential operators in new vanishing Morrey spaces

open access: yes, 2020
We study mapping properties of commutators in certain vanishing subspaces of Morrey spaces, which were recently used to solve the delicate problem of describing the closure of nice functions in Morrey norm.
A. Almeida
semanticscholar   +2 more sources

Some Inequalities for Commutators of Bounded Linear Operators in Hilbert Spaces [PDF]

open access: yes, 2008
Some new inequalities for commutators that complement and in some instances improve recent results obtained by F. Kittaneh in 'Inequalities for commutators of positive operators' (2007) and 'Norm inequalities for commutators of Hilbert space operators ...
Dragomir, Sever S
core   +6 more sources

Conciseness of coprime commutators in finite groups [PDF]

open access: yes, 2014
Let \(G\) be a finite group. We show that the order of the subgroup generated by coprime \(\gamma_k\)-commutators (respectively \(\delta_k\)-commutators) is bounded in terms of the size of the set of coprime \(\gamma_k\)-commutators (respectively ...
Acciarri C   +5 more
core   +6 more sources

Commutative–non-commutative dualities [PDF]

open access: yesCanadian Journal of Physics, 2020
We show that it is in principle possible to construct dualities between commutative and non-commutative theories in a systematic way. This construction exploits a generalization of the exact renormalization group equation (ERG). We apply this to the simple case of the Landau problem and then generalize it to the free and interacting non-canonical ...
Scholtz, F.G.   +2 more
openaire   +2 more sources

Vector Inequalities for Powers of Some Operators in Hilbert Spaces [PDF]

open access: yes, 2008
Vector inequalities for powers of some operators in Hilbert spaces with applications for operator norm, numerical radius, commutators and self-commutators are ...
Dragomir, Sever S
core   +4 more sources

Commutators in the two scalar and matrix weighted setting [PDF]

open access: yesJournal of the London Mathematical Society, 2020
In this paper, we approach the two weighted boundedness of commutators via matrix weights. This approach provides both a sufficient and a necessary condition for the two weighted boundedness of commutators with an arbitrary linear operator in terms of ...
J. Isralowitz, S. Pott, S. Treil
semanticscholar   +1 more source

Semi-commutations and Partial commutations [PDF]

open access: yesRAIRO - Theoretical Informatics and Applications, 2000
Summary: The aim of this paper is to show that a semi-commutation function can be expressed as the compound of a sequential transformation, a partial commutation function, and the reverse transformation. Moreover, we give a necessary and sufficient condition for the image of a regular language to be computed by the compound of two sequential functions ...
Mireille Clerbout   +2 more
openaire   +2 more sources

Some remarks on the sparse dominations for commutators of multi(sub)linear operator

open access: yesJournal of Inequalities and Applications, 2021
We establish pointwise sparse dominations for the iterated commutators of multi(sub)linear operators satisfying the W q $W_{q}$ condition. As consequences, we present some quantitative weighted estimates for the commutators.
Zhidan Wang
doaj   +1 more source

Commutators of the Fractional Hardy Operator on Weighted Variable Herz-Morrey Spaces

open access: yesJournal of Function Spaces, 2021
In the present paper, our aim is to establish the boundedness of commutators of the fractional Hardy operator and its adjoint operator on weighted Herz-Morrey spaces with variable exponents M
Amjad Hussain   +3 more
semanticscholar   +1 more source

Commutators of multilinear strongly singular integrals on nonhomogeneous metric measure spaces

open access: yesOpen Mathematics, 2021
Let (X,d,μ)\left(X,d,\mu ) denote nonhomogeneous metric measure space satisfying geometrically doubling and the upper doubling measure conditions.
Wang Hailian, Xie Rulong
doaj   +1 more source

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