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arXiv 0904.1699math-phmath.MP
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Hilbert空间中无界Hermite算子的对偶理论

A duality theory for unbounded Hermitian operators in Hilbert space

Palle E. T. Jorgensen

摘要:

本文在Hilbert空间中建立了具有稠密区域的无界Hermite算子的对偶理论。众所周知,厄米算子成为自伴算子或具有自伴扩张的障碍是由一对亏指标和相关的亏空间来衡量的;但在实际问题中,直接计算这些指标可能很困难。相反,在本文中,我们确定了更多的结构,抛出光的问题。虽然对偶考虑是数学中的一个测试工具,但我们将攻击计算希尔伯特空间中具有稠密域的单个埃尔米特算子的亏空间的问题,该亏空间与第二个埃尔米特算子发生对偶关系,通常在同一希尔伯特空间中。

英文摘要:

We develop a duality theory for unbounded Hermitian operators with dense domain in Hilbert space. As is known, the obstruction for a Hermitian operator to be selfadjoint or to have selfadjoint extensions is measured by a pair of deficiency indices, and associated deficiency spaces; but in practical problems, the direct computation of these indices can be difficult. Instead, in this paper we identify additional structures that throw light on the problem. While duality considerations are a tested tool in mathematics, we will attack the problem of computing deficiency spaces for a single Hermitian operator with dense domain in a Hilbert space which occurs in a duality relation with a second Hermitian operator, often in the same Hilbert space.

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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