Relation between bicrossed products and crossed extensions of fusion categories
Quantum Algebra
2025-09-22 v2
Abstract
We show that all crossed extensions defined by Natale can be recovered as duals of bicrossed products of fusion categories. As an application, we prove that any exact factorization between a pointed fusion category and a fusion category can be realized as a bicrossed product .
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Cite
@article{arxiv.2507.08562,
title = {Relation between bicrossed products and crossed extensions of fusion categories},
author = {Monique Müller and Héctor Martín Peña Pollastri and Julia Plavnik},
journal= {arXiv preprint arXiv:2507.08562},
year = {2025}
}
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12 pages