Results 11 to 20 of about 4,859,609 (359)

The periodic dilation completeness problem: cyclic vectors in the Hardy space over the infinite‐dimensional polydisk [PDF]

open access: yesJournal of the London Mathematical Society, 2019
The classical completeness problem raised by Beurling and independently by Wintner asks for which ψ∈L2(0,1) , the dilation system {ψ(kx):k=1,2,…} is complete in L2(0,1) , where ψ is identified with its extension to an odd 2‐periodic function on R .
H. Dan, K. Guo
semanticscholar   +1 more source

Remark on atomic decompositions for the Hardy space $H^1$ in the rational Dunkl setting [PDF]

open access: yesStudia Mathematica, 2018
Let $\Delta$ be the Dunkl Laplacian on $\mathbb R^N$ associated with a normalized root system $R$ and a multiplicity function $k(\alpha)\geq 0$. We say that a function $f$ belongs to the Hardy space $H^1_{\Delta}$ if the nontangential maximal function ...
Jacek Dziuba'nski, Agnieszka Hejna
semanticscholar   +1 more source

Column extreme multipliers of the Free Hardy Space [PDF]

open access: yesJournal of the London Mathematical Society, 2018
The full Fock space over Cd can be identified with the Free Hardy Space, H2(BNd) — the unique non‐commutative reproducing kernel Hilbert space corresponding to a non‐commutative Szegö kernel on the non‐commutative, multi‐variable open unit ball BNd:=⨆n=1∞
M. Jury, R.T.W. Martin
semanticscholar   +1 more source

Volterra integration operators from Hardy-type tent spaces to Hardy spaces

open access: yesJournal of Inequalities and Applications, 2022
In this paper, we completely characterize the boundedness and compactness of the Volterra integration operators J g $J_{g}$ acting from the Hardy-type tent spaces HT q , α p ( B n ) to the Hardy spaces H t ( B n ) in the unit ball of C n for all 0 < p ...
Rong Hu, Chuan Qin, Lv Zhou
doaj   +1 more source

Composition–differentiation operators on the Hardy space

open access: yesProceedings of the American Mathematical Society, 2020
Let φ \varphi be a nonconstant analytic self-map of the open unit disk in C \mathbb {C} , with ‖ φ ‖ ∞ > 1 ...
M. Fatehi, Christopher N. B. Hammond
semanticscholar   +1 more source

Weak Factorizations of the Hardy Space H 1(ℝ n ) in Terms of Multilinear Riesz Transforms [PDF]

open access: yesCanadian mathematical bulletin, 2016
This paper provides a constructive proof of the weak factorization of the classical Hardy space ${{H}^{1}}({{\mathbb{R}}^{n}})$ in terms of multilinear Riesz transforms.
Ji Li, B. Wick
semanticscholar   +1 more source

Orthorecursive expansions generated by the Szego kernel [PDF]

open access: yesИзвестия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2023
This article considers systems of subspaces of the Hardy space generated by the Szego kernel. The main result of the work is to establish the convergence of orthorecursive expansions with respect to the considered systems of subspaces.
Terekhin, Pavel A.
doaj   +1 more source

Mixed Martingale Hardy Spaces [PDF]

open access: yesThe Journal of Geometric Analysis, 2020
AbstractIn this paper, we consider the martingale Hardy spaces defined with the help of the mixed $$L_{\overrightarrow{p}}$$ L p → -norm. Five mixed martingale Hardy spaces will be investigated:
Szarvas, Kristof, Weisz, Ferenc
openaire   +3 more sources

L p $L^{p}$ Hardy type inequality in the half-space on the H-type group

open access: yesJournal of Inequalities and Applications, 2016
In the current work we studied Hardy type and L p $L^{p}$ Hardy type inequalities in the half-space on the H-type group, where the Hardy inequality in the upper half-space R + n $\mathbf{R}_{+}^{n}$ was proved by Tidblom in (J. Funct. Anal.
Jianxun He, Mingkai Yin
doaj   +1 more source

Reducing Subspaces for Toeplitz Operator Tz1k1z2k2+az¯1l1z¯2l2 on the Weighted Hardy Space over the Bidisk

open access: yesJournal of Function Spaces, 2022
In this paper, we completely characterize the reducing subspaces for Tφa on weighted Hardy space ℋω2D2 under three assumptions on ω, where φa=zk+az¯l, k,l∈ℕ2, k≠l, and a∈0,1.
Changguo Wei, Xin Ding, Yanyue Shi
doaj   +1 more source

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