Results 51 to 60 of about 1,423 (87)

The molecular characterization of anisotropic Herz-type Hardy spaces with two variable exponents

open access: yesOpen Mathematics, 2020
In this article, the authors establish the characterizations of a class of anisotropic Herz-type Hardy spaces with two variable exponents associated with a non-isotropic dilation on ℝn{{\mathbb{R}}}^{n} in terms of molecular decompositions.
Guo Qingdong, Wang Wenhua
doaj   +1 more source

Talenti comparison results and rigidity results for anisotropic p-Laplacian operator with Robin boundary conditions

open access: yesAdvanced Nonlinear Studies
In this paper, we first establish the Talenti comparison principle for anisotropic p-Laplacian equation with Robin boundary conditions. This achievement not only extends classical Talenti comparison result for Laplacian equation with Robin boundary ...
Chen Lu, Yang Yabo
doaj   +1 more source

The spectrum generated by s-numbers and pre-quasi normed Orlicz-Cesáro mean sequence spaces

open access: yesOpen Mathematics, 2020
In this article, we study some topological properties of the multiplication operator on Orlicz-Cesáro mean sequence spaces equipped with the pre-quasi norm and the pre-quasi operator ideal constructed by this sequence space and s-numbers.
Bakery Awad A.
doaj   +1 more source

Optimal Polynomial Approximants in Lp

open access: yesConcrete Operators, 2022
Over the past several years, optimal polynomial approximants (OPAs) have been studied in many different function spaces. In these settings, numerous papers have been devoted to studying the properties of their zeros.
Centner Raymond
doaj   +1 more source

Continuity and essential norm of operators defined by infinite tridiagonal matrices in weighted Orlicz and l∞ spaces

open access: yesOpen Mathematics
In this article, we provide a comprehensive study on the continuity and essential norm of an operator defined by an infinite tridiagonal matrix, specifically when it operates from a weighted Orlicz sequence space or a weighted l∞{l}^{\infty } space into ...
Ramos-Fernández Julio C.   +2 more
doaj   +1 more source

On the Mean Summability by Cesaro (C,a) and Abel-Poisson Methods of Trigonometric Fourier Series in the Weighted Lorentz Spaces [PDF]

open access: yes
In the paper the classical results on the mean convergence and summability of trigonometric Fourier series are extended to the weighted Lorentz spaces.
D.M. Israfilov   +2 more
core   +1 more source

The strong Fatou property of risk measures

open access: yesDependence Modeling, 2018
In this paper, we explore several Fatou-type properties of risk measures. The paper continues to reveal that the strong Fatou property,whichwas introduced in [19], seems to be most suitable to ensure nice dual representations of risk measures.
Chen Shengzhong   +2 more
doaj   +1 more source

A note on lower bounds of martingale measure densities

open access: yes, 2005
For a given element $f\in L^1$ and a convex cone $C\subset L^\infty$, $C\cap L^\infty_+=\{0\}$ we give necessary and sufficient conditions for the existence of an element $g\ge f$ lying in the polar of $C$. This polar is taken in $(L^\infty)^*$ and in $L^
Rokhlin, Dmitry, Schachermayer, Walter
core   +1 more source

Optimal transport of vector measures. [PDF]

open access: yesCalc Var Partial Differ Equ, 2021
Ciosmak KJ.
europepmc   +1 more source

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