activity
19962026
most citedFrobenius-Schur Indicators and Exponents of Spherical Categories

160 citations · 499 across the 28 of their papers we have counts for

collaborators

31 papers

math.CT2026

Cleft Extensions for Hopf Algebroids without Antipodes

Xiao Han, Peter Schauenburg

We introduce cleft extensions for Hopf algebroids. We prove the equivalence between cleft extensions, -twisted crossed products, and Hopf-Galois extensions with the normal basis…

math.CT2025

Hopf BiGalois Theory for Hopf Algebroids

Xiao Han, Peter Schauenburg

We develop a theory of Hopf BiGalois extensions for Hopf algebroids. We understand these to be left bialgebroids (whose left module categories are monoidal categories) fulfilling a…

math.CT2025

Reflective centers as categories of modules

Peter Schauenburg

In [LWY23] the authors construct the reflective center of a module category M over a braided monoidal category B. The reflective center is by construction a braided module category…

math.QA2024

Hopf Galois extensions of Hopf algebroids

Xiao Han, Peter Schauenburg

We study Hopf Galois extensions of Hopf algebroids as a generalization of the theory for Hopf algebras. More precisely, we introduce (skew-)regular comodules and generalize the str…

math.QA2018★ 3 cited

A Topological Invariant for Modular Fusion Categories

Ajinkya Kulkarni, Michaël Mignard, Peter Schauenburg

The modular data of a modular category , consisting of the -matrix and the -matrix, is known to be an incomplete invariant of . More generally, the…

math.QA2017★ 5 cited

Morita equivalence of pointed fusion categories of small rank

Michaël Mignard, Peter Schauenburg

We classify pointed fusion categories C(G, ) up to Morita equivalence for 1 < |G| < 32. Among them, the cases |G| = 2 3 , 2 4 and 3 3 are emphasized. Although the equivalence cl…