3 papers
math.QA2025
On the finite generation of the cohomology of bosonizations
Nicolás Andruskiewitsch, David Jaklitsch, Van C. Nguyen +4
We use deformation sequences of (Hopf) algebras, extending the results of Negron and Pevtsova, to show that bosonizations of some suitable braided Hopf algebras by some suitable fi…
math.RA2025
Taft algebra actions on preprojective algebras
Jason Gaddis, Amrei Oswald
We classify actions of generalized Taft algebras on preprojective algebras of extended Dynkin quivers of type . This may be viewed as an extension of the problem of classifying…
math.RT2024
The Hochschild cohomology ring of monomial algebras
Dalia Artenstein, Janina C. Letz, Amrei Oswald +1
We give an explicit description of a diagonal map on the Bardzell resolution for any monomial algebra, and we use this diagonal map to describe the cup product on Hochschild cohomo…