Dual coalgebras of twisted tensor products

Autor: Reyes, Manuel L.
Rok vydání: 2023
Předmět:
Druh dokumentu: Working Paper
Popis: We investigate cases where the finite dual coalgebra of a twisted tensor product of two algebras is a crossed product coalgebra of their respective finite duals. This is achieved by interpreting the finite dual as a topological dual; in order to prove this, we show that the continuous dual is a strong monoidal functor on linearly topologized vector spaces whose open subspaces have finite codimension. We describe a sufficient condition for the result on finite dual coalgebras to be applied, and we this condition to particular constructions including Ore extensions, smash product algebras, and crossed product bialgebras.
Comment: 24 pages. This paper includes material that was removed from an earlier version of arXiv:2111.07081
Databáze: arXiv