Results 21 to 30 of about 45,244 (248)

Continuous Operators for Unbounded Convergence in Banach Lattices

open access: yesMathematics, 2022
Recently, continuous functionals for unbounded order (norm, weak and weak*) in Banach lattices were studied. In this paper, we study the continuous operators with respect to unbounded convergences.
Zhangjun Wang, Zili Chen
doaj   +1 more source

A Characterization of Discrete Banach Lattices with Order Continuous Norms [PDF]

open access: yesProceedings of the American Mathematical Society, 1988
We give a characterization of those σ \sigma
openaire   +2 more sources

Disjointly non-singular operators on order continuous Banach lattices complement the unbounded norm topology [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2022
In this article we investigate the disjointly non-singular (DNS) operators. Following [8] we say that an operator $T$ from a Banach lattice $F$ into a Banach space $E$ is DNS, if no restriction of $T$ to a subspace generated by a disjoint sequence is strictly singular.
openaire   +2 more sources

Statistical Ergodic Theorem in Symmetric Spaces for Infinite Measures

open access: yesСовременная математика: Фундаментальные направления, 2021
Let (Ω,μ) be a measurable space with σ -finite continuous measure, μ(Ω)=∞. A linear operator T:L1(Ω)+L∞(Ω)→L1(Ω)+L∞(Ω) is called the Dunford-Schwartz operator if ||T(f)||1||f||1 (respectively, ||T(f)||∞||f||∞) for all f∈L1(Ω) (respectively, f∈L∞(Ω)). {Tt}
A. S. Veksler, V. I. Chilin
doaj   +1 more source

Characterization of Banach Lattices in Terms of Quasi-Interior Points

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2013
In terms of quasi-interior points, criteria that a Banach lattice has order continuous norm or is an -space with a unit are given. For example, if is Dedekind complete and has a weak order unit, then has order continuous norm if and only if the set of
Egor A. Alekhno
doaj   +1 more source

A Piecewise Linear Programming Algorithm for Sparse Signal Reconstruction

open access: yesTsinghua Science and Technology, 2017
In order to recover a signal from its compressive measurements, the compressed sensing theory seeks the sparsest signal that agrees with the measurements, which is actually an l0 norm minimization problem.
Kuangyu Liu   +3 more
doaj   +1 more source

Complexity theory for spaces of integrable functions [PDF]

open access: yesLogical Methods in Computer Science, 2017
This paper investigates second-order representations in the sense of Kawamura and Cook for spaces of integrable functions that regularly show up in analysis. It builds upon prior work about the space of continuous functions on the unit interval: Kawamura
Florian Steinberg
doaj   +1 more source

PDα-type iterative learning control with initial state learning for fractional-order systems

open access: yesXibei Gongye Daxue Xuebao, 2021
In order to eliminate the influence of the arbitrary initial state on the systems, open-loop and open-close-loop PDα-type fractional-order iterative learning control (FOILC) algorithms with initial state learning are proposed for a class of fractional ...

doaj   +1 more source

Fractional order PDα-type ILC for linear continuous time-delay switched system with disturbance measurement and uncertainties noise [PDF]

open access: yesJournal of Hyperstructures
This study investigates the efficacy of a novel PDα-type fractional-order iterative learning control (FOILC) approach for a class of fractional-order linear continuous-time delaying switched systems.
Omprakash Dewangan
doaj   +1 more source

Are Fertility Preservation Procedures Before Gonadotoxic Therapy and Hematopoietic Stem Cell Transplantation Feasible and Safe in Very Young Children? A Retrospective Cohort Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Fertility preservation (FP) is increasingly integrated into the care of pediatric patients exposed to gonadotoxic therapy or conditioning for hematopoietic stem cell transplantation (HSCT), yet perioperative data in infants and toddlers remain scarce.
Kerstin Saalabian   +13 more
wiley   +1 more source

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