Results 21 to 30 of about 332,343 (256)
Narrow operators (a survey) [PDF]
Banach Center Publications, 2011 M. M. Popov
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Narrow and $\ell_2$-strictly singular operators from $L_p$ [PDF]
Israel 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
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Some problems on narrow operators on function spaces [PDF]
Open Mathematics, 2014 Popov Mikhail +2 more
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Narrow operators on lattice-normed spaces and vector measures [PDF]
, 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
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APPROXIMATION OF NARROW OPERATORS ON THE SPACE L1 BY RANK ONE OPERATORS
METHODS AND DEVICES OF QUALITY CONTROLThe note is devoted to the study of further properties of narrow operators, defined on the Lebesgue space L1 and acting to an arbitrary Banach space. We investigate a new property, which asserts that any narrow operator on an ``essential’’ part of the domain space is arbitrary close in the sense of operator norm, to a rank one operator.
M. M. Popov, O. G. Fotii
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On linear sections of orthogonally additive operators
Математичні Студії, 2022 Our first result asserts that, for linear regular operators acting from a Riesz space with the principal projection property to a Banach lattice with an order continuous norm, the $C$-compactness is equivalent to the $AM$-compactness. Next we prove that,
A. Gumenchuk, I. Krasikova, M. Popov
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Journal of Telecommunications and Information Technology, 2023 The paper presents an idea to use weak derivatives in interval global optimization. It allows using the Newton operator to narrow domains of non-differentiable functions. Preliminary computational experiments are also presented.
Bartłomiej Jacek Kubica
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A note on narrow operators in $L_\infty$
Matematychni Studii, 2009 I. Krasikova
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Adaptive dating and fast proposals: Revisiting the phylogenetic relaxed clock model.
PLoS Computational Biology, 2021 Relaxed clock models enable estimation of molecular substitution rates across lineages and are widely used in phylogenetics for dating evolutionary divergence times.
Jordan Douglas +2 more
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Widening and narrowing operators for abstract interpretation [PDF]
Computer Languages, Systems & Structures, 2011 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
CORTESI, Agostino, ZANIOLI, Matteo
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