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arXiv math/9906136math.DGmath.FA
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超连通、扭曲作用与正数量曲率

Superconnections, twisted actions and positive scalar curvature

Varghese Mathai

摘要:

利用Quillen的超连通形式,我们给出了一种新的“扭曲”方法,来解决紧致自旋流形上正数量曲率黎曼度量存在性拓扑障碍的有理Gromov-Lawson-Rosenberg(GLR)猜想.特别地,我们给出了一个简短的证明有理GLR猜想字双曲群。

英文摘要:

Using Quillen's superconnection formalism we give a new "twisted" approach to the rational Gromov-Lawson-Rosenberg (GLR) conjecture on topological obstructions to the existence of Riemannian metrics of positive scalar curvature on compact spin manifolds. In particular, we present a short proof of the rational GLR conjecture for word hyperbolic groups.

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