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Equivariant Chern classes in Hopf cyclic cohomology

We present a geometric approach, in the spirit of the Chern-Weil theory, for constructing cocycles representing the classes of the Hopf cyclic cohomology of the Hopf algebra H(n) relative to GL(n, R). This provides an explicit description of the universal Hopf cyclic Chern classes, which complements our earlier geometric realization of the Hopf cyclic characteristic classes of foliations.

preprint2015arXivOpen access
Henri Moscovici
math.QAmath.DG
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Henri Moscovici

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