Results 11 to 20 of about 262 (136)

Wavelet optimal estimations for a two-dimensional continuous-discrete density function over Lp $L^{p}$ risk [PDF]

open access: yesJournal of Inequalities and Applications, 2018
The mixed continuous-discrete density model plays an important role in reliability, finance, biostatistics, and economics. Using wavelets methods, Chesneau, Dewan, and Doosti provide upper bounds of wavelet estimations on L2 $L^{2}$ risk for a two ...
Lin Hu, Xiaochen Zeng, Jinru Wang
doaj   +2 more sources

Order of the trigonometric widths of the Nikol’skii-Besov classes with mixed metric in the metric of anisotropic Lorentz spaces

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2020
In this paper we estimate the order of the triginometric width of the Nikol’skii–Besov classes Bατp(Tn) with mixed metric in the anisotropic Lorentz space Lqθ(Tn) when ...
K.A. Bekmaganbetov   +2 more
doaj   +1 more source

Fourier Series Approximation in Besov Spaces

open access: yesJournal of Mathematics, 2023
Defined on the top of classical Lp-spaces, the Besov spaces of periodic functions are good at encoding the smoothness properties of their elements.
Birendra Singh, Uaday Singh
doaj   +1 more source

Estimates of the norm of the convolution operator in anisotropic Besov spaces with the dominated mixed derivative

open access: yesҚарағанды университетінің хабаршысы. Математика сериясы, 2019
In this paper, we investigate the boundedness of the norm of the convolution operator in Sobolev spaces with the dominated mixed derivative and anisotropic Nikolsky-Besov spaces.
K.K. Sadykova, N.T. Tleukhanova
doaj   +1 more source

Besov-Schatten Spaces

open access: yesJournal of Function Spaces and Applications, 2012
We introduce the Besov-Schatten spaces 𝐵𝑝(ℓ2), a matrix version af analytic Besov space, and we compute the dual of this space showing that it coincides with the matricial Bloch space introduced previously in Popa (2007).
A. N. Marcoci   +2 more
doaj   +1 more source

On estimates of the best M-term approximations of functions of many variables in a space with a uniform metric [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика
The paper considers the space of continuous functions with a uniform metric and the anisotropic Lorentz – Zygmund space of periodic functions of many variables and the Nikol’skii – Besov class in this space.
Akishev, Gabdolla
doaj   +1 more source

Radial growth of the derivatives of analytic functions in Besov spaces

open access: yesConcrete Operators, 2020
For 1 < p < ∞, the Besov space Bp consists of those functions f which are analytic in the unit disc 𝔻 = {z ∈ 𝔺 : |z| < 1} and satisfy ∫𝔻(1 − |z|2)p−2|f ′(z)|p dA(z) < ∞. The space B2 reduces to the classical Dirichlet space 𝒟.
Domínguez Salvador, Girela Daniel
doaj   +1 more source

Non-Diskcyclicity of Bounded Composition Operators on the Little Bloch Space and the Besov Space

open access: yesJournal of Mathematics, 2022
In this paper, we show that there are no diskcyclic composition operators on the little Bloch space ℬ0 and the Besov spaces Bp.
Hang Zhou, Yuxia Liang
doaj   +1 more source

A-priori Estimates Near the Boundary for Solutions of a class of Degenerate Elliptic Problems in Besov-type Spaces

open access: yesMoroccan Journal of Pure and Applied Analysis, 2017
In this paper, we give a priori estimates near the boundary for solutions of a degenerate elliptic problems in the general Besov-type spaces Bp,qs,τ$B_{p,q}^{s,\tau }$, containing as special cases: Goldberg space bmo, local Morrey-Campanato spaces l2,λ ...
El Baraka Azzeddine, Masrour Mohammed
doaj   +1 more source

Remarks on the Maximal Regularity for Parabolic Boundary Value Problems With Inhomogeneous Data

open access: yesMathematical Methods in the Applied Sciences, Volume 49, Issue 13, Page 15316-15326, 15 September 2026.
ABSTRACT Inspired by Ogawa‐Shimizu and Chen‐Liang‐Tsai on the second and first order derivative estimates of solutions of the heat equation in the upper half space with boundary data in homogeneous Besov spaces, we extend the estimates to any order of derivatives, including fractional derivatives.
Hui Chen, Su Liang, Tai‐Peng Tsai
wiley   +1 more source

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