Dirichlet空间上Toeplitz算子的交换性(Ⅱ)

首先讨论了Ω符号的Toeplitz算子在Dirichlet空间D2上的交换性,推广了有界调和符号情形,也给出了不同于经典Hardy空间或Bergman空间上交换性的新情形;其次给山了L∞θ.1符号Toeplitz算于与径向或拟齐次符号的Toeplitz算于可交换的充要条件.所得结果与Hardy空间,Bergman空间以及Dirichlet空间D均有不同.     

加权Bergman空间上解析Toeplitz算子的换位及相似

本文在加权Bergman 空间A_α²(D)(α>-1) 上证明了由n-Blaschke 因子诱导的解析Toeplitz算子相似于n个Bergman 移位的直接和, 刻画了一类解析Toeplitz 算子的换位并研究了两个解析Toeplitz 算子的相似性.     

H~2(T~n)上的可换Toeplitz算子

本文获得了ploydisk上的Hardy空间H2（Tn）上的两个具有多重调和函数符号的Toeplitz算子可换的充要条件由此得出Bergman空间La2（Dn）上的坐标乘子组不能与Hardy空间H2（Tm）上的具有多重调和符号的Toeplitz算子组联合酉等价．     

Ap(φ)上Toeplitz算子的半换位子

本文给出加权Bergman空间A^p(φ)上具有界调和符号的Toeplitz算子的半换位子为零或为紧算子的一些充要条件.     

Dirichlet空间上Toeplitz算子的一些性质

该文研究了Dirichlet空间D^p~(1< p<∞)上Toeplitz算子的紧性与Fredholm性质, 计算了D^p上Toeplitz算子的Fredholm指标. 还考查了D^p上Hankel算子紧性.     

带有调和符号的交换Toeplitz算子

我们研究作用于调和Bergman空间b²(D{0})上的带有调和符号的Toeplitz算子,其中D是复平面上的单位圆盘.首先,研究b^p(Ω)的结构并且获得b^p(Ω)中的每个元在调和Bergman投影之下的像.其次,证明特殊的Toeplitz算子T_log|w|:b²(D{0})→b²(D/{0})是有界线性算子并获得带有调和或全纯符号的Toeplitz算子与T_log|w|可交换的充分必要条件.第三,我们获得两个带有全纯符号的Toeplitz算子可交换的充分必要条件.第四,给出带有全纯符号的正规Toeplitz算子的一个特征.最后,得到带有调和符号的Toeplitz算子彼此之间可交换的一个必要条件.     

重调和Hardy空间Toeplitz算子的交换性

本文研究重调和Hardy空间h~2(Ω)上,Toeplitz算子的交换性,给出了h~2(T~2)上一个解析Toeplitz算子与另一个共轭解析Toeplitz算子交换的充分必要条件.     

Cn中球型带权Bergman空间上Toeplitz与Hankel算子之紧性

本文给出Cⁿ中单位球上的带权的Bergman空间上具L^∞-符号的Toeplitz算子或Hankel算子为紧的充要条件。     

多调和小指标Bergman空间的Forelli-Rudin型定理 *

证明了Bergman型算子T_s 是将多调和Bergman空间L^p(B)∩h(B)映到Bergman空间L^p(B)∩H(B)上的有界投影算子 ,其中 0(p^-1-1)(n+1)作为应用 ,证明了Bergman空间L^p(B)∩H(B) ( 0相似文献   

截断调和Bergman空间上的Toeplitz算子

截断调和Bergman空间b_n~2=L_a~2{w,w~2,…,w~n}~v是Hilbert空间L~2的闭子空间.研究了单位圆盘上的截断调和Bergman空间上的Toeplitz算子的乘积问题,完整地刻画了具有有界调和符号的两个Toeplitz算子的有限秩与紧的半换位子或换位子.     

Toeplitz operators on the polydisk

In this paper it is shown that two analytic Toeplitz operators essentially doubly commute if and only if they doubly commute on the Bergman space of the polydisk.

     

Commutants of Analytic Toeplitz Operators on the Harmonic Bergman Space

We study the commuting problem for Toeplitz operators on the harmonic Bergman space of the unit disk. We show that an analytic Toeplitz operator and a co-analytic Toeplitz operator with certain noncyclicity hypothesis can commute only when one of their symbols is constant. We also obtain analogous results for semi-commutants.     

On C*-Algebras of Toeplitz Operators on the Harmonic Bergman Space

Commutative algebras of Toeplitz operators acting on the Bergman space on the unit disk have been completely classified in terms of geometric properties of the symbol class. The question when two Toeplitz operators acting on the harmonic Bergman space commute is still open. In some papers, conditions on the symbols have been given in order to have commutativity of two Toeplitz operators. In this paper, we describe three different algebras of Toeplitz operators acting on the harmonic Bergman space: The C*-algebra generated by Toeplitz operators with radial symbols, in the elliptic case; the C*-algebra generated by Toeplitz operators with piecewise continuous symbols, in the parabolic and hyperbolic cases. We prove that the Calkin algebra of the first two algebras are commutative, like in the case of the Bergman space, while the last one is not.     

A question of Toeplitz operators on the harmonic Bergman space

Choe and Lee [B.R. Choe, Y.J. Lee, Commuting Toeplitz operators on the harmonic Bergman space, Michigan Math. J. 46 (1999) 163-174] put the question: If an analytic Toeplitz operator and a co-analytic Toeplitz operator on the harmonic Bergman space commute, then is one of their symbols constant? If one of their symbols is bounded, then we will show that the answer is yes.     

Commutants of analytic Toeplitz operators on the Bergman space

In this note we show that if two Toeplitz operators on a Bergman space commute and the symbol of one of them is analytic and nonconstant, then the other one is also analytic.

     

多圆盘上的本质可换的Toeplitz算子

本文讨论多圆盘上Ｂｅｒｇｍａｎ空间上的具有多重调和符号的Ｔｏｅｐｌｉｔｚ算子的本质可换性与可换性．我们获得了一个解析或共轭解析Ｔｏｅｐｌｉｔｚ算子与具有多重调和符号的Ｔｏｅｐｌｉｔｚ算子本质可换的充分必要条件是它们是可换的．     

单位多圆柱上Bergman空间中的分别准齐次ToePlitz算子

本文研究了单位多圆柱上Bergman空间中以分别准齐次函数为记号的Toeplitz算子的代数性质.我们首先得到了两个以分别准齐次函数为记号的Toeplitz算子可以写成一个Toeplitz算子的充分必要条件,然后利用L2(Dn,dV)的一个极分解式证明了,只要其中有一个Toeplitz算子是分别准齐次的,则其零乘积问题...     

Products of composition and analytic Toeplitz operators

We will consider the problem of which the products of composition and analytic Toeplitz operators would be bounded or compact on the Hardy space H² and the Bergman space L_a².     

Commutativity of kth‐order slant Toeplitz operators

In this paper, commutativity of k^th‐order slant Toeplitz operators are discussed. We show that commutativity and essential commutativity of two slant Toeplitz operators are the same. Also, we study k^th‐order slant Toeplitz operators on the Bergman space L²_a(D) and give some commuting properties, algebraic and spectral properties of k^th‐order slant Toeplitz operators on the Bergman space (© 2010 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)     

Quasihomogeneous Toeplitz operators on the harmonic Bergman space

In this paper we study the product of Toeplitz operators on the harmonic Bergman space of the unit disk of the complex plane \mathbbC{\mathbb{C}}. Mainly, we discuss when the product of two quasihomogeneous Toeplitz operators is also a Toeplitz operator, and when such operators commute.