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math.RA2022
A Primer on Twists in the Noncommutative Realm Focusing on Algebra, Representation Theory, and Geometry
Pablo S. Ocal, Kenta Ueyama, Padmini Veerapen
We review several techniques that twist an algebra's multiplicative structure. We first consider twists by an automorphism, also known as Zhang twists, and we relate them to 2-cocy…
math.RA2022★ 2 cited
A dichotomy between twisted tensor products of bialgebras and Frobenius algebras
Pablo S. Ocal, Amrei Oswald
We endow twisted tensor products with a natural notion of counit and comultiplication, and we provide sufficient and necessary conditions making the twisted tensor product a counit…