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Equivalence of different definitions of higher $\rho$ invariants

Algebraic Topology 2024-11-27 v1 Operator Algebras

Abstract

For each orientation-preserving homotopy equivalence between two closed oriented smooth manifolds, there are mainly two different approaches to the higher ρ\rho invariant associated to this homotopy equivalence. In this article, we show that these two definitions of the higher ρ\rho invariant are equivalent.

Keywords

Cite

@article{arxiv.2411.16716,
  title  = {Equivalence of different definitions of higher $\rho$ invariants},
  author = {Hongzhi Liu and Zhizhang Xie and Guoliang Yu},
  journal= {arXiv preprint arXiv:2411.16716},
  year   = {2024}
}

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28 pages