4 citations · 16 across the 16 of their papers we have counts for
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Duality for action bialgebroids
Sophie Chemla, Fabio Gavarini, Niels Kowalzig
We study the effect of linear duality on action bialgebroids (also known as smash product or scalar extension bialgebroids) and, for those bearing a quantisation nature, the effect…
Universal enveloping algebras of Lie-Rinehart algebras: crossed products, connections, and curvature
Xavier Bekaert, Niels Kowalzig, Paolo Saracco
We extend a theorem, originally formulated by Blattner-Cohen-Montgomery for crossed products arising from Hopf algebras weakly acting on noncommutative algebras, to the realm of le…
When Ext is a Batalin-Vilkovisky algebra
Niels Kowalzig
We show under what conditions the complex computing general Ext-groups carries the structure of a cyclic operad such that Ext becomes a Batalin-Vilkovisky algebra. This is achieved…
Duality features of left Hopf algebroids
Sophie Chemla, Fabio Gavarini, Niels Kowalzig
We explore special features of the pair (U^*, U_*) formed by the right and left dual over a (left) bialgebroid U in case the bialgebroid is, in particular, a left Hopf algebroid. I…