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arXiv · 2512.24541

The Diagrammatic Spherical Category

Tasman Fell
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Abstract

We construct a diagrammatic categorification of the spherical module over the Hecke algebra. We establish a basis for the morphism spaces of this category, and prove that it is equivalent to an existing algebraic spherical category.

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Tasman Fell. 2025-12-31. The Diagrammatic Spherical Category. https://arxiv.org/abs/2512.24541

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