Results 11 to 20 of about 37,281 (287)

Narrow operators on lattice-normed spaces and vector measures [PDF]

open access: green, 2015
We consider linear narrow operators on lattice-normed spaces. We prove that, under mild assumptions, every finite rank linear operator is strictly narrow (before it was known that such operators are narrow). Then we show that every dominated, order continuous linear operator from a lattice-normed space over atomless vector lattice to an atomic lattice ...
D. T. Dzadzaeva, M. A. Pliev
openalex   +4 more sources

An estimate for narrow operators on $$L^p([0, 1])$$ [PDF]

open access: hybridArchiv der Mathematik, 2020
AbstractWe prove a theorem, which generalises C. Franchetti’s estimate for the norm of a projection onto a rich subspace of $$L^p([0, 1])$$ L p ( [
Eugene Shargorodsky, Teo Sharia
openalex   +3 more sources

On sums of narrow and compact operators

open access: hybridPositivity, 2019
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
O. Fotiy   +3 more
openalex   +3 more sources

Narrow operators on vector-valued sup-normed spaces [PDF]

open access: bronzeIllinois Journal of Mathematics, 2002
19 ...
Dmitriy Bilik   +4 more
openalex   +5 more sources

Narrow and $\ell_2$-strictly singular operators from $L_p$ [PDF]

open access: greenIsrael Journal of Mathematics, 2012
In the first part of the paper we prove that for $2 < p, r < \infty$ every operator $T: L_p \to \ell_r$ is narrow. This completes the list of sequence and function Lebesgue spaces $X$ with the property that every operator $T:L_p \to X$ is narrow.
Volodymyr Mykhaylyuk   +3 more
openalex   +4 more sources

Domination Problem for Narrow Orthogonally Additive Operators [PDF]

open access: greenPositivity, 2015
12 pages. arXiv admin note: text overlap with arXiv:1309.6074.
Marat Pliev
openalex   +4 more sources

Narrow operators and the Daugavet property for ultraproducts [PDF]

open access: greenPositivity, 2005
We show that if $T$ is a narrow operator on $X=X_{1}\oplus_{1} X_{2}$ or $X=X_{1}\oplus_{\infty} X_{2}$, then the restrictions to $X_{1}$ and $X_{2}$ are narrow and conversely. We also characterise by a version of the Daugavet property for positive operators on Banach lattices which unconditional sums of Banach spaces inherit the Daugavet property, and
Dmitriy Bilik   +3 more
openalex   +4 more sources

On Enflo and narrow operators acting on $L_p$ [PDF]

open access: green, 2012
The first part of the paper is inspired by a theorem of H. Rosenthal, that if an operator on $L_1[0,1]$ satisfies the assumption that for each measurable set $A \subseteq [0,1]$ the restriction $T \bigl|_{L_1(A)}$ is not an isomorphic embedding, then the operator is narrow.
Volodymyr Mykhaylyuk   +2 more
openalex   +3 more sources

On sign embeddings and narrow operators on $L_2$ [PDF]

open access: green, 2016
The goal of this note is two-fold. First we present a brief overview of "weak" embeddings, with a special emphasis on sign embeddings which were introduced by H. P. Rosenthal in the early 1980s. We also discuss the related notion of narrow operators, which was introduced by A. Plichko and M. Popov in 1990.
Beata Randrianantoanina
openalex   +3 more sources

Wealth Distribution Under Power Trading Frequencies and Transitions of Agents [PDF]

open access: yesEntropy
We construct a kinetic model to investigate transactions among two populations from different countries. In our model, power collision kernels and a transfer operator are introduced into the Boltzmann equation.
Rongmei Sun, Shaoyong Lai, Xia Zhou
doaj   +2 more sources

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