A noncommutative Atiyah-Patodi-Singer index theorem in KK-theory
A noncommutative Atiyah-Patodi-Singer index theorem in KK-theory
复制标题
KK理论中的非交换Atiyah-Patodi-Singer指数定理
DOI:
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发表时间:
2007
期刊:
影响因子:
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通讯作者:
A. Rennie
中科院分区:
文献类型:
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作者:
A. Carey;J. Phillips;A. Rennie
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.