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Cyclic Cohomology of Corings
Published online by Cambridge University Press: 14 November 2008
Abstract
We define cyclic cohomology of corings over not necessarily commutative algebras. Our method is a generalization of Hopf-cyclic cohomology obtained by replacing coalgebras and Hopf algebras with corings and para-Hopf algebroids, respectively. We also study the dual of this theory whose cyclic cohomology, in contrast with the case of algebras and coalgebras, is not trivial.
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- Copyright © ISOPP 2008