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arXiv 1901.03993math.FA
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Cowen-Douglas算子的几何相似不变量

Geometric Similarity invariants of Cowen-Douglas Operators

Chunlan Jiang, Kui Ji, Dinesh Kumar Keshari

摘要:

1978年,M. J. Cowen和R.G. Douglas在一篇很有影响力的论文中引入了一类算子(称为Cowen-Douglas算子类),并将一个Hermitian全纯向量丛与这样的算子联系起来。他们给出了一套完整的酉不变量,涉及曲率及其协变偏导数。同时,他们问:可以使用几何的想法,完全特征的相似不变量的Cowen-Douglas运营商?我们对这个问题作了部分回答。本文证明了曲率和第二基本型完全刻画了范数稠密Cowen-Douglas算子类的相似不变量.

英文摘要:

In 1978, M. J. Cowen and R.G. Douglas introduce a class of operators (known as Cowen-Douglas class of operators) and associates a Hermitian holomorphic vector bundle to such an operator in a very influential paper. They give a complete set of unitary invariants in terms of involving the curvature and its covariant partial derivatives. At the same time they ask: can one use geometric ideas to characterize completely the similarity invariants of Cowen-Douglas operators? We give a partial answer to this question. In this paper, we show that the curvature and the second fundamental form completely characterize the similarity invariants for a norm dense class of Cowen-Douglas operators.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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