Cup Coproducts in Hopf Cyclic Cohomology
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🧮 math.KT
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algebrascoproductshopfcohomologycyclicgrouphomologyalgebra
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We define cup coproducts for Hopf cyclic cohomology of Hopf algebras and for its dual theory. We show that for universal enveloping algebras and group algebras our coproduct recovers the standard coproducts on Lie algebra homology and group homology, respectively.
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