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arXiv 0704.3022math.FAmath.OA
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Hilbert格拉斯曼变换的保序性:复情形

Order preserving transformations of the Hilbert grassmannian: complex case

Mark Pankov

摘要:

设$H$是可分复希尔伯特空间.用${\mathcal G}_{\infty}(H)$表示由具有无穷维和余维的闭线性子空间组成的格拉斯曼空间。这个Grassmannian是由包含关系偏序的。证明了${\mathcal G}_{\infty}(H)$的每一个连续保序双射变换都是由一个可逆的有界半线性算子诱导的.

英文摘要:

Let $H$ be a separable complex Hilbert space. Denote by ${\mathcal G}_{\infty}(H)$ the Grassmannian consisting of closed linear subspaces with infinite dimension and codimension. This Grassmannian is partially ordered by the inclusion relation. We show that every continuous order preserving bijective transformation of ${\mathcal G}_{\infty}(H)$ is induced by an invertible bounded semi-linear operator.

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