We give explicit formulas for the asymptotic growth rate of the number of summands in tensor powers in certain monoidal categories with finitely many indecomposable objects, and related structures.
Tubbenhauer, D., Dos Santos Santana Forte Vaz, P., & Lacabanne, A. (2023). Asymptotics in finite monoidal categories. American Mathematical Society. Proceedings. Series B, 10, 398-412. https://doi.org/10.1090/bproc/198 (Original work published 2023)