Higher spectral flow

Details Higher spectral flow Higher spectral flow

1996-08-08

arxiv.org/abs/dg-ga/9608002v1

Mathematics

Differential Geometry

Latex, 35 pages

Scientific paper

For a continuous curve of families of Dirac type operators we define a higher spectral flow as a $K$-group element. We show that this higher spectral flow can be computed analytically by $\heta$-forms, and is related to the family index in the same way as the spectral flow is related to the index. We introduce a notion of Toeplitz family and relate its index to the higher spectral flow. Applications to family indices for manifolds with boundary are also given.

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