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Related papers: Dyadic product BMO in the Bloom setting

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Let $A$ be a (non-unital, in general) C*-algebra with center $Z(M(A))$ of its multiplier algebra, and let $\{ X, \langle .,. \rangle \}$ be a full Hilbert $A$-module. Then any bijective bounded module morphism $T$, for which every…

Operator Algebras · Mathematics 2026-04-09 Michael Frank

Denote by $T$ and $I_{\alpha}$ the bilinear Calder\'{o}n-Zygmund operators and bilinear fractional integrals, respectively. In this paper, it is proved that if $b_{1},b_{2}\in {\rm CMO}$ (the {\rm BMO}-closure of…

Functional Analysis · Mathematics 2017-03-21 Dinghuai Wang , Jiang Zhou , Zhidong Teng

We give a criterion on collections of Calderon-Zygmund operators to classify product BMO by means of iterated commutators.

Classical Analysis and ODEs · Mathematics 2013-07-25 Laurent Dalenc , Stefanie Petermichl

We shall study the solvability of pseudodifferential operators which are not of principal type. The operator will have real principal symbol and we shall consider the limits of bicharacteristics at the set where the principal symbol…

Analysis of PDEs · Mathematics 2016-11-14 Nils Dencker

Motivated by the need to relate the biparameter persistence module induced by a pair of scalar functions with the monoparameter persistence modules induced by each function separately, we introduce a construction that defines a kind of…

Algebraic Topology · Mathematics 2026-01-30 Isabella Mastroianni , Marco Guerra , Ulderico Fugacci , Emanuela De Negri

Using Wilson's Haar basis in $\R^n$, which is different than the usual tensor product Haar functions, we define its associated dyadic paraproduct in $\R^n$. We can then extend "trivially" Beznosova's Bellman function proof of the linear…

Functional Analysis · Mathematics 2010-11-23 Daewon Chung

In this paper, we study commutator of generalized Hausdorff operator on function spaces. We mainly discuss the continuity criteria for such commutator operator when the symbol functions are either from central-$BMO$ or Lipschitz class of…

Classical Analysis and ODEs · Mathematics 2018-04-17 Amjad Hussain , Amna Ajaib

We prove that the class of Muckenhoupt A_p weights coincides with the intersection of finitely many suitable translates of dyadic A_p, in both the one-parameter and multiparameter cases, and that the analogous results hold for the reverse…

Classical Analysis and ODEs · Mathematics 2012-05-01 Ji Li , Jill Pipher , Lesley A. Ward

Let $ \Pi _{b}$ be a bounded $n$ parameter paraproduct with symbol $b$. We demonstrate that this operator is in the Schatten class $S^p$, $0<p<\infty$, if the symbol is in the $n$ parameter Besov space $B_p$. Our result covers both the…

Functional Analysis · Mathematics 2024-11-27 Michael T. Lacey , Ji Li , Brett D. Wick

We prove that the multiplication map L^a(M)\otimes_M L^b(M)\to L^{a+b}(M) is an isometric isomorphism of (quasi)Banach M-M-bimodules. Here L^a(M)=L_{1/a}(M) is the noncommutative L_p-space of an arbitrary von Neumann algebra M and \otimes_M…

Operator Algebras · Mathematics 2019-12-24 Dmitri Pavlov

In this paper we deal with an invariant ergodic hyperbolic measure $\mu$ for a diffeomorphism $f,$ assuming that $f$ it is either $C^{1+\alpha}$ or $f$ is $C^1$ and the Oseledec splitting of $\mu$ is dominated. We show that this system…

Dynamical Systems · Mathematics 2013-07-18 Krerley Oliveira , Xueting Tian

In this paper we introduce the notion of multiplier of a Hilbert pro-$C^{\ast }$-bimodule and we investigate the structure of the multiplier bimodule of a Hilbert pro-$C^{\ast}$-bimodule. We also investigate the relationship between the…

Operator Algebras · Mathematics 2014-12-21 Maria Joiţa , Radu-B. Munteanu , Ioannis Zarakas

Given Hilbert spaces $H_1,H_2,H_3$, we consider bilinear maps defined on the cartesian product $S^2(H_2,H_3)\times S^2(H_1,H_2)$ of spaces of Hilbert-Schmidt operators and valued in either the space $B(H_1,H_3)$ of bounded operators, or in…

Operator Algebras · Mathematics 2020-07-09 Christian Le Merdy , Ivan G. Todorov , Lyudmila Turowska

Let $R$ be the vector of Riesz transforms on $\mathbb{R}^n$, and let $\mu,\lambda \in A_p$ be two weights on $\mathbb{R}^n$, $1 < p < \infty$. The two-weight norm inequality for the commutator $[b, R] : L^p(\mathbb{R}^n;\mu) \to…

Classical Analysis and ODEs · Mathematics 2017-05-30 Irina Holmes , Michael T. Lacey , Brett D. Wick

We consider the space of differential operators $\mathcal{D}_{\lambda\mu}$ acting between $\lambda$- and $\mu$-densities defined on $S^{1|2}$ endowed with its standard contact structure. This contact structure allows one to define a…

Differential Geometry · Mathematics 2013-08-26 Najla Mellouli , Aboubacar Nibirantiza , Fabian Radoux

We establish an estimate of the BMO-norm of a divergence-free vector field in ${\mathbb R}^3$ in terms of the operator norm of an associated paracommutator. The latter is essentially a $\Psi$DO, whose symbol depends linearly on the vector…

Analysis of PDEs · Mathematics 2022-06-22 M. N. Demchenko

Let U, V, and W be multiplicative unitaries coming from discrete Kac systems such that W is an amenable normal submultiplicative unitary of V with quotient U. We define notions for right-Hilbert bimodules of coactions of S_V and (S_V)^,…

funct-an · Mathematics 2007-05-23 S. Kaliszewski , John Quigg

In this paper, we study the boundedness of pseudodifferential operators with symbols in the H\"ormander class $S^0_{\rho,\rho}$ on $\alpha$-modulation spaces $M_{p,q}^{s,\alpha}$, and consider the relation between $\alpha$ and $\rho$. In…

Functional Analysis · Mathematics 2019-02-05 Tomoya Kato , Naohito Tomita

We consider the open two-site Bose-Hubbard dimer, a well-known quantum mechanical model that has been realised recently for photons in two coupled photonic crystal nanocavities. The system is described by a Lindblad master equation which,…

Quantum Physics · Physics 2022-02-09 Andrus Giraldo , Stuart J. Masson , Neil G. R. Broderick , Bernd Krauskopf

We study the boundedness properties of commutators formed by $b$ and $T$, where $T$ is a bilinear bi-parameter singular integral satisfying natural $T1$ type conditions and $b$ is a little BMO function. For paraproduct free bilinear…

Classical Analysis and ODEs · Mathematics 2018-04-18 Kangwei Li , Henri Martikainen , Emil Vuorinen