丁宣浩, 曹石遗. 算子超等距膨胀的条件[J]. Journal of Xinjiang University (Natural Science Edition in Chinese and English), 1993, (2).DOI:
算子超等距膨胀的条件
摘要
本文在文[1]
[2]的基础上
进一步讨论了算子超等距膨胀的性质
证明了T∈L(H)可超等距膨胀的充分必要条件是T≌PH M|H
或者T≌∑■ PH M|H这里M是Bergman位移
H∈LatM*。
Abstract
We discussed conditions of operators dilated super-isometric in [1]. It is shown that AT∈L(H) is super-isometriclly dilatable iff T≌P_nM|_nor T≌ΣP_nM|n