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Characterizations of the associated spaces and second associated spaces of the Hardy space on $\mathbb{R}^n$ are given. Some results on the associated spaces of the $\textrm{BMO}(\mathbb{R}^n)$ space are proved also.

泛函分析 · 数学 2023-10-31 Dmitrii V. Prokhorov

We prove a stability theorem for spaces of smooth concordance embeddings. From it we derive various applications to spaces of concordance diffeomorphisms and homeomorphisms.

代数拓扑 · 数学 2025-04-02 Thomas Goodwillie , Manuel Krannich , Alexander Kupers

We prove uniform resolvent estimates in weighted $L^2$-spaces for the sublaplacian $\mathcal{L}$ on the Heisenberg group $\mathbb{H}^d$. The proof are based on multiplier methods, and strongly rely on the use of horizontal multipliers and…

谱理论 · 数学 2023-10-30 Luca Fanelli , Luz Roncal , Nico Michele Schiavone

Spaces of quasi-invariant measures supplied with different topologies are studied. Their embeddings, projective decompositions, conditions for their metrizability are investigated. Theorems about convergence of nets of quasi-invariant…

概率论 · 数学 2016-06-08 Sergey Victor Ludkowski

We determine the injective envelope and local multiplier algebra of a continuous trace C*-algebra that arises from a continuous Hilbert bundle over an arbitrary locally compact Hausdorff space. In addition, we show that the second-order…

算子代数 · 数学 2011-02-25 Martin Argerami , Douglas Farenick , Pedro Massey

In a previous work, "compact versions" of Rubio de Francia's weighted extrapolation theorem were proved, which allow one to extrapolate the compactness of an linear operator from just one space to the full range of weighted Lebesgue spaces,…

泛函分析 · 数学 2022-06-24 Stefanos Lappas

We discuss and prove a theorem which asserts that any n-dimensional semi-Riemannian manifold can be locally embedded in a (n+1)-dimensional space with a non-degenerate Ricci tensor which is equal, up to a local analytic diffeomorphism, to…

广义相对论与量子宇宙学 · 物理学 2015-06-25 F. Dahia , C. Romero

In this paper, we generalize the existence result in [14] and prove convergence theorems of the iterative scheme in [12, 16] for monotone generalized alpa-nonexpansive mappings in uniformly convex partially ordered hyperbolic metric spaces.…

泛函分析 · 数学 2020-06-29 Chang Il Rim , Jong Gyong Kim , Chol-Hui Yun

Fractional Sobolev spaces, also known as Besov or Slobodetzki spaces, arise in many areas of analysis, stochastic analysis in particular. We prove an embedding into certain q-variation spaces and discuss a few applications. First we show…

概率论 · 数学 2007-05-23 Peter Friz , Nicolas Victoir

This paper deals with simultaneously fast and in-place algorithms for formulae where the result has to be linearly accumulated: some output variables are also input variables, linked by a linear dependency. Fundamental examples include the…

符号计算 · 计算机科学 2025-11-07 Jean-Guillaume Dumas , Bruno Grenet

We obtain new molecular decompositions and molecular synthesis estimates for Hermite Besov and Hermite Triebel--Lizorkin spaces and use such tools to prove boundedness properties of Hermite pseudo-multipliers on those spaces. The notion of…

经典分析与常微分方程 · 数学 2021-05-14 Fu Ken Ly , Virginia Naibo

We formulate and establish a generalization of Koll\'ar's injectivity theorem for adjoint bundles twisted by suitable multiplier ideal sheaves. As applications, we generalize Koll\'ar's torsion-freeness, Koll\'ar's vanishing theorem, and a…

复变函数 · 数学 2022-05-24 Osamu Fujino , Shin-ichi Matsumura

Convergence of a projected stochastic gradient algorithm is demonstrated for convex objective functionals with convex constraint sets in Hilbert spaces. In the convex case, the sequence of iterates ${u_n}$ converges weakly to a point in the…

最优化与控制 · 数学 2019-10-01 Caroline Geiersbach , Georg Pflug

We consider the problem of approximating a given element $f$ from a Hilbert space $\mathcal{H}$ by means of greedy algorithms and the application of such procedures to the regression problem in statistical learning theory. We improve on the…

统计理论 · 数学 2009-09-29 Andrew R. Barron , Albert Cohen , Wolfgang Dahmen , Ronald A. DeVore

In the setting of spaces of homogeneous type, we study some Hardy type inequalities, which notably appeared in the proofs of local T(b) theorems as in [AR]. We give some suffi cient conditions ensuring their validity, related to the…

经典分析与常微分方程 · 数学 2013-04-12 Eddy Routin

We present a polynomial partitioning theorem for finite sets of points in the real locus of an irreducible complex algebraic variety of codimension at most two. This result generalizes the polynomial partitioning theorem on the Euclidean…

代数几何 · 数学 2015-09-22 Saugata Basu , Martin Sombra

Motivated by TRACE algorithm [Curtis et al. 2017], we propose a trust region algorithm for finding second order stationary points of a linearly constrained non-convex optimization problem. We show the convergence of the proposed algorithm…

最优化与控制 · 数学 2019-04-16 Maher Nouiehed , Meisam Razaviyayn

We prove the Invariant Subspace Conjecture for separable Hilbert spaces.

泛函分析 · 数学 2023-07-24 Charles W. Neville

In this paper, we establish an anisotropic version of Campanato Theorem and show that the anisotropic Bessel spaces are continuously embedded in the spaces of Holder continuous functions. As an application of this embedding, we build…

偏微分方程分析 · 数学 2025-05-27 H. Hajaiej , R. Leitao

We characterize the space of multipliers from the Hardy space of Dirichlet series $\mathcal H_p$ into $\mathcal H_q$ for every $1 \leq p,q \leq \infty$. For a fixed Dirichlet series, we also investigate some structural properties of its…

复变函数 · 数学 2022-05-18 Tomás Fernandez Vidal , Daniel Galicer , Pablo Sevilla-Peris