搜索结果: 46-60 共查到“知识库 算子代数”相关记录120条 . 查询时间(4.249 秒)
Factorization of Matrices of Quaternions
Factorization Matrices Quaternions Operator Algebras
2011/8/24
Abstract: We review known factorization results in quaternion matrices. Specifically, we derive the Jordan canonical form, polar decomposition, singular value decomposition, the QR factorization. We p...
C*-algebras with the weak expectation property and a multivariable analogue of Ando's theorem on the numerical radius
C*-algebras the weak expectation property Ando's theorem the numerical radius
2011/8/23
Abstract: A classic theorem of T. Ando characterises operators that have numerical radius at most one as operators that admit a certain positive 2x2 operator matrix completion. In this paper we consid...
无纹理图像修复模型的快速数值算法
图像修复 无纹理图像 加性算子分裂方法
2012/11/14
将曲率驱动扩散(CDD)模型应用于无纹理图像的修复, 对其数值离散格式进行改进, 计算分为两步执行: 在修复区域内采用时间步进法； 修复区域外利用加性算子分裂方法, 该方法加快了收敛速度, 数值实验结果表明效果较好。
一个参数型Hilbert奇异重积分算子的范数
Hilbert奇异重积分算子 算子的(p,p)型范数 有界算子
2012/11/14
定义参数型Hilbert奇异重积分算子,通过权系数方法, 研究了Tλ的(p,p)型范数, 并给出了它的应用。
Algorithms for Highly Symmetric Linear and Integer Programs
Algorithms Highly Symmetric Linear Integer Programs
2011/2/25
This paper deals with exploiting symmetry for solving linear and integer programming problems. Basic properties of linear representations of finite groups can be used to reduce symmetric linear progra...
Eigenvalues of the fractional Laplace operator in the interval
Eigenvalues fractional Laplace operator interval
2011/1/18
Two-term Weyl-type asymptotic law for the eigenvalues of one-dimensional fractional Laplace operator (−) /2 ( ∈ (0, 2)) in the interval (−1, 1) is given: the n-th eigenvalue is equal to ...
On lower eigenvalue estimates for Toeplitz operators with radial symbols in Bergman spaces
Bergman spaces Bargmann spaces Toeplitz operators
2011/2/21
We consider Toeplitz operators in different Bergman type spaces, having radial symbols with variable sign. We show that if the symbol has compact support or decays rapidly, the eigenvalues of such ope...
Noncommutative circle bundles and new Dirac operators
Noncommutative circle bundles new Dirac operators
2011/1/21
We study the spectral triples over the total space of noncommutative principal U(1) bundles. Basing on the classical situation and the abstract algebraic approach we propose a definition of connection...
Algebra of differential operators associated with Young diagrams
Algebra of differential operators Young diagrams
2011/1/17
We establish a correspondence between Young diagrams and differential operators of infinitely many variables. These operators form a commutative associative algebra isomorphic to the algebra of the co...
On Uniform Equicontinuity of Sequences of Measurable Operators
Uniform Equicontinuity Sequences of Measurable Operators
2011/2/21
The notion of uniform equicontinuity in measure at zero for sequences of additive maps from a normed space into the space of measurable operators associated with a semifinite von Neumann algebra is di...
Singular operators with antisymmetric kernels, related capacities, and Wolff potentials
Singular operators antisymmetric kernels related capacities Wolff potentials
2011/1/21
We consider a generalization of the Riesz operator in Rd and obtain estimates for its norm and for related capacities via the modified Wolff potential. These estimates are based on the certain version...
Calderón-Zygmund operators in the Bessel setting
Bessel operator Bessel semigroup maximal operator square function
2011/2/28
We study several fundamental operators in harmonic analysis related to Bessel operators, including maximal operators related to heat and Poisson semigroups, Littlewood-Paley-Stein square functions, mu...
We generalize our recent explicit construction of the full hierarchy of Baxter Q-operators of
compact spin chains with su(n) symmetry to the supersymmetric case su(n|m). The method is
based on novel...
Toeplitz operators on Bergman spaces of polyanalytic functions
Toeplitz operators Bergman spaces of polyanalytic functions
2011/1/21
We study algebraic properties of Toeplitz operators on Berg-man spaces of polyanalytic functions on the unit disk. We obtain results on finite-rank commutators and semi-commutators of Toeplitz operato...
Some approximation properties of Lupa\cs $q$-analogue of Bernstein operators
q-Bernstein polynomials Lupa¸ s q-analogue Voronovskaja-type
2011/2/23
In this paper, we discuss rates of convergence for the Lupa¸s q-analogue of Bernstein
polynomials Rn,q. We prove a quantitative variant of Voronovskaja’s theorem for Rn,q.