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arXiv · 0711.3028

A noncommutative Atiyah-Patodi-Singer index theorem in KK-theory

A. L. Carey·J. Phillips·A. Rennie
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Abstract

We investigate an extension of ideas of Atiyah-Patodi-Singer (APS) to a noncommutative geometry setting framed in terms of Kasparov modules. We use a mapping cone construction to relate odd index pairings to even index pairings with APS boundary conditions in the setting of KK-theory, generalising the commutative theory. We find that Cuntz-Kreiger systems provide a natural class of examples for our construction and the index pairings coming from APS boundary conditions yield complete K-theoretic information about certain graph C*-algebras.

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BibTeXRIS

A. L. Carey, J. Phillips, A. Rennie. 2008-02-04. A noncommutative Atiyah-Patodi-Singer index theorem in KK-theory. https://arxiv.org/abs/0711.3028

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