[图书][B] Function spaces of logarithmic smoothness: embeddings and characterizations

Ó Domínguez, S Tikhonov - 2023 - ams.org
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Function spaces of logarithmic smoothness: embeddings and characterizations

O Domínguez, S Tikhonov - arXiv preprint arXiv:1811.06399, 2018 - arxiv.org
In this paper we present a comprehensive treatment of function spaces with logarithmic
smoothness (Besov, Sobolev, Triebel-Lizorkin). We establish the following results: Sharp …

[HTML][HTML] Limiting embeddings in smoothness Morrey spaces, continuity envelopes and applications

W Yuan, DD Haroske, SD Moura, L Skrzypczak… - Journal of approximation …, 2015 - Elsevier
In this paper, the authors prove some Franke–Jawerth embedding for the Besov-type spaces
B p, qs, τ (R n) and the Triebel–Lizorkin-type spaces F p, qs, τ (R n). By using some limiting …

Truncated smooth function spaces

O Domínguez, S Tikhonov - Transactions of the American Mathematical …, 2024 - ams.org
We introduce truncated Besov and Triebel–Lizorkin function spaces and study their main
properties: embeddings, interpolation, duality, lifting, traces. These new scales allow us to …

[HTML][HTML] Optimal recovery of Besov classes of generalized smoothness and Sobolev classes on the sphere

H Wang, K Wang - Journal of Complexity, 2016 - Elsevier
We want to recover continuous functions on the sphere S d− 1 using only their function
values. We obtain the asymptotic orders of the sampling numbers and the linear sampling …

On the smoothness of slowly varying functions

D Peša - Proceedings of the Edinburgh Mathematical Society, 2024 - cambridge.org
In this paper, we consider the question of smoothness of slowly varying functions satisfying
the modern definition that, in the last two decades, gained prevalence in the applications …

[HTML][HTML] Spaces of generalized smoothness in the critical case: optimal embeddings, continuity envelopes and approximation numbers

SD Moura, JS Neves, C Schneider - Journal of Approximation Theory, 2014 - Elsevier
We study necessary and sufficient conditions for embeddings of Besov spaces of
generalized smoothness B p, q σ, N (R n) into generalized Hölder spaces Λ∞, r μ (⋅)(R n) …

Entropy numbers of Besov classes of generalized smoothness on the sphere

HP Wang, K Wang, J Wang - Acta Mathematica Sinica, English Series, 2014 - Springer
We investigate the asymptotic behavior of the entropy numbers of Besov classes BB_ p, θ^
Ω\left (S^ d-1\right) of generalized smoothness on the sphere in L_q\left (S^ d-1\right) for 1≤ …

Optimal embeddings of spaces of generalized smoothness in the critical case

SD Moura, JS Neves, C Schneider - Journal of Fourier Analysis and …, 2011 - Springer
We study necessary and sufficient conditions for embeddings of Besov and Triebel-Lizorkin
spaces of generalized smoothness B^(n/p,Ψ)_p,q(R^n) and F^(n/p,Ψ)_p,q(R^n) …

[HTML][HTML] Widths of Besov classes of generalized smoothness on the sphere

H Wang, S Tang - Journal of Complexity, 2012 - Elsevier
We introduce the Besov spaces BpθΩ (Sd− 1) of generalized smoothness on the sphere
Sd− 1, and obtain the representation theorem, an embedding theorem, and the …