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Hypergroup structure from the quotient by the local subcategory in a weak-braided monoidal category

Determine whether, for any weak-braided monoidal category D, defining the local subcategory D^{loc} as the full weak-braided subcategory equivalent to a braided monoidal category (interpreted as the kernel of the weak braiding), the quotient K = D // D^{loc} carries a canonical hypergroup structure, analogous to hypergroups arising from quotients in module categories over commutative algebra objects.

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Background

The paper introduces weak-braided monoidal categories via an operadic approach (the operad wPaB) and shows that categories of modules over commutative algebra objects in braided monoidal categories, as well as braided G-crossed categories, are weak-braided. In the context of extensions by algebra objects, prior work exhibits a hypergroup structure on a quotient of module categories by their local (braided) subcategory.

Motivated by this, the author proposes defining a local subcategory D{loc} inside a general weak-braided category D as the kernel of the weak braiding (a weak-braided subcategory equivalent to a braided category). The question is whether the quotient K = D // D{loc} naturally inherits a hypergroup structure in this broader, non-invertible symmetry setting.

References

The present work leaves open the following questions: Does $K=\mathcal{D}//\mathcal{D}{loc}$ form a hypergroup, as in ?

Weak braiding for algebras in braided monoidal categories (2410.23027 - Stockall, 30 Oct 2024) in Subsection “Future questions”