Delocalized $L^2$-Invariants

Details Delocalized $L^2$-Invariants Delocalized $L^2$-Invariants

1996-12-02

arxiv.org/abs/dg-ga/9612003v1

Mathematics

Differential Geometry

22 pages, AMS-Latex

Scientific paper

We define extensions of the $L^2$-analytic invariants of closed manifolds, called delocalized $L^2$-invariants. These delocalized invariants are constructed in terms of a nontrivial conjugacy class of the fundamental group. We show that in many cases, they are topological in nature. We show that the marked length spectrum of an odd-dimensional hyperbolic manifold can be recovered from its delocalized $L^2$-analytic torsion. There are technical convergence questions.

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