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arXiv · 2610.41811

Coxeter Rigidity and ADE Classification of Fibonacci-Generated Tensor Categories

Huixuan He·Zhengwei Liu
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Abstract

We propose a program to classify tensor categories generated by prescribed seed tensor categories. We carry out this program for finitely many marked copies of the positive Fibonacci category with pairwise nonisomorphic generating simple objects, in the setting of split locally finite semisimple rigid $\CC$-linear tensor categories with simple unit. We show that the Fibonacci fusion relation forces the fusion rules to be those of a specialized Coxeter--Hecke ring. The systems admitting categorification have Coxeter exponents $2,3,\infty$. For every such system we construct a tensor category and prove uniqueness up to marked tensor equivalence. Its simple objects are indexed by the Coxeter group, which may be infinite. Finite rank occurs precisely for disjoint unions of finite ADE diagrams, giving the ADE classification of Fibonacci-generated fusion categories. These categories are unitarizable, with no unitary structure assumed on the candidate. In finite ADE type, allowing Yang--Lee seeds gives one independent tensor-branch choice on each connected component.

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Huixuan He, Zhengwei Liu. 2026-10-30. Coxeter Rigidity and ADE Classification of Fibonacci-Generated Tensor Categories. https://arxiv.org/abs/2610.41811

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