On Bergman-Toeplitz operators with commutative symbol algebras

On Bergman-Toeplitz operators with commutative symbol algebras
复制标题

关于具有交换符号代数的 Bergman-Toeplitz 算子

DOI:
10.1007/bf01332495
复制
发表时间:
1999
影响因子:
0.8
通讯作者:
N. Vasilevski
N. Vasilevski
中科院分区:
数学3区
文献类型:
--
作者:
N. Vasilevski

文献摘要

被引文献

相似文献

摘要让 $$\Mathbb{D}$$ 为ℂ中的单元盘, $$\数学{A}^2(\mathbb{D})$$ 是Bergman空间,由来自的所有解析函数组成 $$L_2(\mathbb{D})$$ ,以及 $$B_\mathbb{D}$$ 是伯格曼的投影 $$L_2(\mathbb{D})$$ vt.上 $$\数学{A}^2(\mathbb{D})$$ 。我们构造了C*-代数 $$\数学{A}\子集L_\inty(\mathbb{D})$$ 证明了对于Toeplitz算子的交换子[Ta,Tb]=TaTb−TbTa是紧的,同时半交换子[Ta,Tb)=TaTb−Tab不紧的函数,对每个有限集∧=<N0,n1,…,nm>,其中1=N0,n1;n1;…,lt;nm≤∞,nk∈ℕ∪{∞},都有代数 $$\数学{A}_\Lambda$$ 使得符号代数Sym $$\Mathcal{T}(\Mathcal{A}_\Lambda)$$ 关于Toeplitz算子代数 $$\Mathcal{T}(\Mathcal{A}_\Lambda)$$ 是可交换的,而符号代数Sym $$\Mathcal{R}(\Mathcal{A}_\Lambda,B_\mathbb{D})$$ 关于代数的 $$\Mathcal{R}(\Mathcal{A}_\Lambda,B_\mathbb{D})$$ ,由乘法运算符生成 $$a\in\数学{A}_\Lambda$$ 和 $$B_\mathbb{D}$$ ,具有维度N0,N1,…,nm的不可约表示。
AbstractLet $$\mathbb{D}$$ be the unit disk inℂ, $$\mathcal{A}^2 (\mathbb{D})$$ be the Bergman space, consisting of all analytic functions from $$L_2 (\mathbb{D})$$ , and $$B_\mathbb{D} $$ be the Bergman projection of $$L_2 (\mathbb{D})$$ onto $$\mathcal{A}^2 (\mathbb{D})$$ . We constructC*-algebras $$\mathcal{A} \subset L_\infty (\mathbb{D})$$ , for functions of which the commutator of Toeplitz operators [Ta,Tb]=TaTb−TbTa is compact, and, at the same time, the semi-commutator [Ta,Tb)=TaTb−Tab is not compact.It is proved, that for each finite set ∧=〈n0,n1, ...,nm〉, where 1=n0<n1<...<nm≤∞, andnk ∈ℕ∪ {∞}, there are algebras $$\mathcal{A}_\Lambda $$ of the above type, such that the symbol algebras Sym $$\mathcal{T}(\mathcal{A}_\Lambda )$$ of Toeplitz operator algebras $$\mathcal{T}(\mathcal{A}_\Lambda )$$ arecommutative, while the symbol algebras Sym $$\mathcal{R}(\mathcal{A}_\Lambda ,B_\mathbb{D} )$$ of the algebras $$\mathcal{R}(\mathcal{A}_\Lambda ,B_\mathbb{D} )$$ , generated by multiplication operators $$a \in \mathcal{A}_\Lambda $$ and $$B_\mathbb{D} $$ , haveirreducible representations exactly of dimensions n0,n1,..., nm.