正数量曲率、高rho不变量与局部化代数
Positive scalar curvature, higher rho invariants and localization algebras
摘要:
本文利用局部化代数研究了具有正数量曲率度量的闭自旋流形的高ρ不变量。高ρ不变量是一个次不变量,与正数量曲率问题密切相关。本文的主要结果是,当边界具有正的数量曲率度量时,将有边界的自旋流形上Dirac算子的高阶指数与边界上Dirac算子的高阶ρ不变量联系起来.我们的结果推广了Piazza和Schick的一个定理。
英文摘要:
In this paper, we use localization algebras to study higher rho invariants of closed spin manifolds with positive scalar curvature metrics. The higher rho invariant is a secondary invariant and is closely related to positive scalar curvature problems. The main result of the paper connects the higher index of the Dirac operator on a spin manifold with boundary to the higher rho invariant of the Dirac operator on the boundary, where the boundary is endowed with a positive scalar curvature metric. Our result extends a theorem of Piazza and Schick.
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