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arXiv math/0605717math.RTmath.OA
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具有固定角的希尔伯特空间中子空间的存在性

On the Existence of Configurations of Subspaces in a Hilbert Space with Fixed Angles

Natasha D. Popova, Yurii S. Samoilenko

摘要:

对于一类$*$ -代数,其中$*$ -代数$A_{Γ,τ}$由图$Γ$的顶点投影生成,并依赖于一个参数$τ$ $(0 < τ\leq 1)$,利用图的谱理论研究了$τ$的值集$Σ_Γ$,使得代数$A_{Γ,τ}$具有非平凡的$*$ -表示.换句话说,我们研究$τ$的值使得希尔伯特空间中的子空间的相应配置存在。

英文摘要:

For a class of $*$-algebras, where $*$-algebra $A_{Γ,τ}$ is generated by projections associated with vertices of graph $Γ$ and depends on a parameter $τ$ $(0 < τ\leq 1)$, we study the sets $Σ_Γ$ of values of $τ$ such that the algebras $A_{Γ,τ}$ have nontrivial $*$-representations, by using the theory of spectra of graphs. In other words, we study such values of $τ$ that the corresponding configurations of subspaces in a Hilbert space exist.

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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