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19992002
most citedChern character, Hopf algebras, and BRS cohomology

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math-ph2002★ 1 cited

Chern character, Hopf algebras, and BRS cohomology

Denis Perrot

We present the construction of a Chern character in cyclic cohomology, involving an arbitrary number of associative algebras in contravariant or covariant position. This is a gener…

math-ph2002

Retraction of the bivariant Chern character

Denis Perrot

We show that the bivariant Chern character in entire cyclic cohomology constructed in a previous paper in terms of superconnections and heat kernel regularization, retracts on peri…