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次可分解算子的不变子空间格的丰富性

Richness of the Lattice of Invariant Subspaces for Subdecomposable Operators
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摘要 证明了一类次可分解算子的不变子空间格是丰富的,并举例说明存在Hilbert空间上的有界线性算子T,它有无穷多个不变子空间,但是它的不变子空间格Lat(T)不丰富. In this paper, we show that the lattice of invariant subspaces for a class of subdecomposable operators is rich. Moreover, we provide a counter-examples on a Hilbert space in which the operator T has infinitely many invariant subspaces while the invariant subspace lattice Lat(T) for T is not rich.
出处 《数学学报(中文版)》 SCIE CSCD 北大核心 2007年第2期277-280,共4页 Acta Mathematica Sinica:Chinese Series
基金 国家自然科学基金项目(10671147) 湖南省自然科学基金(04JJ6004) 湖南省教育厅科研项目(04C002)
关键词 BANACH空间 不变子空间 次可分解算子 Banach space invariant subspace subdecomposable operator
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