In this chapterLocal index formula we present a proof of the Connes–Moscovici index formula, expressing the index of a (twisted) operator D in a spectral tripleSpectral triple  \((\mathcal {A},\mathcal {H},D)\) by a local formula. First, we illustrate the contents of this chapter in the context of two examples in the odd and even case: the index on the circle and on the torus.

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The Local Index Formula in Noncommutative Geometry

  • Walter D. van Suijlekom

摘要

In this chapterLocal index formula we present a proof of the Connes–Moscovici index formula, expressing the index of a (twisted) operator D in a spectral tripleSpectral triple  \((\mathcal {A},\mathcal {H},D)\) by a local formula. First, we illustrate the contents of this chapter in the context of two examples in the odd and even case: the index on the circle and on the torus.