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In this paper, we will compute the moments of the block operators, induced by the generators of the group, in a group von Neumann algebra and we will observe the identically distributedness.

算子代数 · 数学 2007-05-23 Ilwoo Cho

The general tensorial form of the orbit-orbit interaction operator in the formalism of second quantization is presented. Such an expression is needed to calculate both diagonal and off-diagonal matrix elements with respect to…

原子物理 · 物理学 2007-05-23 G. Gaigalas

We generalize the classical notion of adjoint of a linear operator and the Aron-Schottenloher notion of adjoint of a homogeneous polynomial. The general notion is shown to enjoy several properties enjoyed by the classical ones, nevertheless…

泛函分析 · 数学 2018-11-01 Geraldo Botelho , Leodan A. Torres

Devoted to multi-task learning and structured output learning, operator-valued kernels provide a flexible tool to build vector-valued functions in the context of Reproducing Kernel Hilbert Spaces. To scale up these methods, we extend the…

机器学习 · 计算机科学 2018-05-25 Romain Brault , Florence d'Alché-Buc , Markus Heinonen

In the present paper, we introduce the generalized form of $(p,q)$ Baskakov-Durrmeyer Operators with Stancu type parameters. We derived the local and global approximation properties of these operators and obtained the convergence rate and…

经典分析与常微分方程 · 数学 2016-02-24 Vishnu Narayan Mishra , Shikha Pandey

Using concentration-compactness arguments we prove a variant of the Brezis-Lieb-Lemma under weaker assumptions on the nonlinearity than known before. An intermediate result on the uniform continuity of superposition operators in Sobolev…

泛函分析 · 数学 2016-08-17 Nils Ackermann

We address the question of a Berry-Esseen type theorem for the speed of convergence in a multivariate free central limit theorem. For this, we estimate the difference between the operator-valued Cauchy transforms of the normalized partial…

算子代数 · 数学 2012-02-14 Tobias Mai , Roland Speicher

In the present paper, we introduce a Choldowsky type generalization of the q Favard-Szasz operators and obtain weighted statistical approximation properties of these operators. We also establish the rates of statistical convergence by means…

经典分析与常微分方程 · 数学 2015-05-27 Ali Karaisa

Collective versions of order convergences and corresponding types of collectively qualified sets of operators in vector lattices are investigated. It is proved that collectively order to norm bounded sets are bounded in the operator norm…

泛函分析 · 数学 2025-05-27 Eduard Emelyanov

Starting from a general operator representation in the time-frequency domain, this paper addresses the problem of approximating linear operators by operators that are diagonal or band-diagonal with respect to Gabor frames. A…

偏微分方程分析 · 数学 2008-09-17 Monika Dorfler , Bruno Torresani

Crystal tensor operators, which tranform under U_q->0(sl(2)), in analogous way as the vectors of the crystal basis, are introduced. The Wigner-Eckart theorem for the crystal tensor is defined: the selection rules depend on the initial state…

量子代数 · 数学 2007-05-23 Vincenzo Marotta , Antonino Sciarrino

This article establishes a bilinear embedding for second-order divergence-form operators with complex coefficients, characterized by the simultaneous presence of first-order terms and negative potentials. This work provides a further…

偏微分方程分析 · 数学 2026-05-15 Lorenzo Luciano Morelato , Andrea Poggio

We establish a general semiparametric Bernstein-von Mises theorem for Bayesian nonparametric priors based on continuous observations in a periodic reversible multidimensional diffusion model. We consider a wide range of functionals…

统计理论 · 数学 2025-05-23 Matteo Giordano , Kolyan Ray

A fairly brief and complete presentation of the Zwanzig-Mori projection operator technique is given.

统计力学 · 物理学 2025-11-18 Nail Fatkullin

In this paper, using generalized metric projection, we propose a new extragradient method for finding a common element of the solutions set of a generalized equilibrium problem and a variational inequality for an $\alpha$-inverse-strongly…

泛函分析 · 数学 2016-11-01 Zeynab Jouymandi , Fridoun Moradlou

The Bernstein operator is known as a typical example of positive linear operators which uniformly approximates continuous functions on $[0, 1]$. In the present paper, we introduce a multidimensional extension of the Bernstein operator which…

概率论 · 数学 2023-10-24 Takatoshi Hirano , Ryuya Namba

We provide the most general forms of covariant and normalized time operators and their probability densities, with applications to quantum clocks, the time of arrival, and Lyapunov quantum operators. Examples are discussed of the profusion…

量子物理 · 物理学 2015-05-19 G. C. Hegerfeldt , J. G. Muga , J. Muñoz

We study the q-analogue of Euler-Maclaurin formula and by introducing a new q-operator we drive to this form. Moreover, approximation properties of q-Bernoulli polynomials is discussed. We estimate the suitable functions as a combination of…

经典分析与常微分方程 · 数学 2017-11-06 Mohammad Momenzadeh , Ibrahim Yusuf Kakangi

We derive novel concentration inequalities for the operator norm of the sum of self-adjoint operators that do not explicitly depend on the underlying dimension of the operator, but rather an intrinsic notion of it. Our analysis leads to…

统计理论 · 数学 2026-02-17 Diego Martinez-Taboada , Aaditya Ramdas

The general notion of a Hausdorff-type operator with a kernel depending on an external variable is introduced and generalizations and analogs of classical results on the regularity of various summation methods are proved for the case of…

泛函分析 · 数学 2025-08-05 A. R. Mirotin