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arXiv math/0104067math.OA
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非交换齐性空间上的迹

Traces on non-commutative homogeneous spaces

Magnus B. Landstad

摘要:

研究了齐性空间$G/Γ$的C*-代数变形的性质,这些变形是等变的,即它们通过左平移保持了$G$的自然作用.该中心被证明是同构于$C(G/G_ρ^0)$的$G$的某个子群$G_ρ^0$,并有一个1-1之间的对应关系规范化的轨迹和概率测度$G/G_ρ^0$。这使得可以将变形代数表示为$L^2(G/Γ)$上的算子。还提到了K理论的应用。

英文摘要:

We study properties of C*-algebraic deformations of homogeneous spaces $G/Γ$ which are equivariant in the sense that they preserve the natural action of $G$ by left translation. The center is shown to be isomorphic to $C(G/G_ρ^0)$ for a certain subgroup $G_ρ^0$ of $G$, and there is a 1-1 correspondence between normalised traces and probability measures on $G/G_ρ^0$. This makes it possible to represent the deformed algebra as operators over $L^2(G/Γ)$. Applications to K-theory are also mentioned.

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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