Results 31 to 40 of about 2,360,508 (305)

On Narrow Operators from $$L_p$$ into Operator Ideals

Mediterranean Journal of Mathematics, 2022
AbstractIt is well known that every $$l_2$$ l 2 -strictly singular operator from $$L_p$$ L p , $$1<p<\infty $$ 1
Jinghao Huang, Marat Pliev, Fedor Sukochev   +2 more
openaire   +1 more source

Small Pre-Quasi Banach Operator Ideals of Type Orlicz-Cesáro Mean Sequence Spaces

Journal of Function Spaces, 2019
In this paper, we give the sufficient conditions on Orlicz-Cesáro mean sequence spaces cesφ, where φ is an Orlicz function such that the class Scesφ of all bounded linear operators between arbitrary Banach spaces with its sequence of s-numbers which ...
Awad A. Bakery, Mustafa M. Mohammed
doaj   +1 more source

Normed Dual Algebras

Mathematics, 2019
This article is devoted to the investigation of dual and annihilator normed algebras. Their structure is studied in the paper. Extensions of algebras and fields are considered and by using them, core radicals and radicals are investigated.
Sergey V. Ludkowski
doaj   +1 more source

On tensor stable operator ideals.

Michigan Mathematical Journal, 1989
An operator ideal \({\mathfrak A}\) is tensor stable with respect to a tensor norm \(\alpha\), provided that for all operators S,T belonging to \({\mathfrak A}\) also \(S{\tilde \oplus}_{\alpha}T\) belongs to \({\mathfrak A}\). The authors show that any non-proper Banach-operator ideal with \(\sup_{n}A(id_{\ell^ n_{\infty}})=\infty\), A being the ideal
Carl, B., Defant, A., Ramanujan, M. S.
openaire   +2 more sources

The α_σ-Approximation Property and Its Related Operator Ideals

Mathematics
In this paper, we study the σ-tensor norm (ασ), the absolutely τ-summing operator and the σ-nuclear operator. We characterize the ασ-approximation property in terms of some density of the space of absolutely τ-summing operators.
Ju Myung Kim
doaj   +1 more source

Bilinear ideals in operator spaces

Journal of Mathematical Analysis and Applications, 2015
24 pages, accepted for publication in Journal of Mathematical Analysis and ...
Dimant, Veronica Isabel, Fernández Unzueta, Maite   +1 more
openaire   +4 more sources

On a new generalized closure operator in the frame of ideals [PDF]

Journal of Mahani Mathematical Research
This paper aims to propose and examine two new operators based on the fundamental structure “ideal” and the notion of “generalized” producing a new generalized ideal topological space.
Salah El-Din Abbas, Hossam Mahmoud Khiamy, El-Sayed El-Sanowsy, Ismail Ibedou   +3 more
doaj   +1 more source

Operator bases, S-matrices, and their partition functions [PDF]

, 2017
A bstractRelativistic quantum systems that admit scattering experiments are quantitatively described by effective field theories, where S-matrix kinematics and symmetry considerations are encoded in the operator spectrum of the EFT.
B. Henning, Xiaochuan Lu, Tom Melia, H. Murayama   +3 more
semanticscholar   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

FEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes, Guilherme M. Azevedo, Amanda P. Barcellos, Diana Bahia   +3 more
wiley   +1 more source

Generating Ideals of Bloch Mappings via Pietsch’s Quotients

Mathematics
In this paper, we introduce the notion of the normalized Bloch left-hand quotient ideal A−1∘IB^, where A is an operator ideal and IB^ is a normalized Bloch ideal, as a nonlinear extension of the concept of the left-hand quotient of operator ideals.
José F. Gálvez-Rodríguez, David Ruiz-Casternado   +1 more
doaj   +1 more source