17 citations · 56 across the 19 of their papers we have counts for
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math.QA2008★ 4 cited
Duality and products in algebraic (co)homology theories
Niels Kowalzig, Ulrich Kraehmer
The origin and interplay of products and dualities in algebraic (co)homology theories is ascribed to a -Hopf algebra structure on the relevant universal enveloping algebr…
math.QA2008★ 8 cited
The Hochschild cohomology ring of the standard Podles quantum sphere
Ulrich Kraehmer
The cup and cap product in twisted Hochschild (co)homology is computed for the standard quantum 2-sphere and used to construct a cyclic 2-cocycle that represents the fundamental Ho…