A Hennings type invariant of $3$-manifolds from a topological Hopf superalgebra

Ngoc Phu Ha

We prove the unrolled superalgebra ${\mathcal{U}}_{\xi }^H\mathfrak{sl}(2|1)$ has a completion which is a ribbon superalgebra in a topological sense where $\xi$ is a root of unity of odd…