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math.QA2023★ 1 cited
Free resolutions for free unitary quantum groups and universal cosovereign Hopf algebras
Isabelle Baraquin, Uwe Franz, Malte Gerhold +2
We find a finite free resolution of the counit of the free unitary quantum groups of van Daele and Wang and, more generally, Bichon's universal cosovereign Hopf algebras with a gen…
math.QA2019★ 5 cited
Non-surjective pullbacks of graph C*-algebras from non-injective pushouts of graphs
Alexandru Chirvasitu, Piotr M. Hajac, Mariusz Tobolski
We find a substantial class of pairs of -homomorphisms between graph C*-algebras of the form whose pullback C*-algebra is…