Ramy Yammine

collaborators

3 papers

math.RA2020

On actions of connected Hopf algebras

Ramy Yammine

Let $H$ be a connected Hopf algebra acting on an algebra $A$ . Working over a base field having characteristic $0$ , we show that for a given prime (semi-prime, completely prime) ide…

math.RA2019

Actions of cocommutative Hopf algebras

Martin Lorenz, Bach Nguyen, Ramy Yammine

Let $H$ be a cocommutative Hopf algebra acting on an algebra $A$ . Assuming the base field to be algebraically closed and the $H$ -action on $A$ to be integral, that is, it is given…

math.RT2019

On the Adjoint Representation of a Hopf Algebra

Stefan Kolb, Martin Lorenz, Bach Nguyen +1

We consider the adjoint representation of a Hopf algebra $H$ focusing on the locally finite part, $H_{adfin}$ , defined as the sum of all finite-dimensional subrepresentation…