Tannaka-Krein duality allows, under the appropriate assumptions, to reconstruct a Hopf algebra from its category of modules. This method was found to be powerful for instance in the work of Etingof-Kazhdan on quantization of Lie bialgebras.
Briefly, the coproduct of a Hopf algebra H (say, in vector spaces VectK) defines a symmetric monoidal structure on its category of modules ModH. We have a forgetful functor U:ModH→VectK called the fiber functor,
so that if U is equipped with a symmetric monoidal structure, then one can recover H via an isomorphism H≅End(U) (the linear endomorphisms of U).
My question is the following: is there a Tannaka duality for topological Hopf algebras, e.g. Hopf algebras in Fréchet spaces, Banach spaces, etc...(equipped with the appropriate tensor product) ? If so, what are the main results and good references about this ?
This post imported from StackExchange MathOverflow at 2014-09-29 17:29 (UTC), posted by SE-user Sinan Yalin