Strongly positive bases in rank-two quantum cluster algebras
Version 3 / Sep 30, 2026 / CC BY 4.0
Abstract
We prove Conjecture 12 of Lee, Li, Rupel, and Zelevinsky: for arbitrary positive integers , every strongly positive basis of the coefficient-free rank-two quantum cluster algebra contains a unique element pointed at each pair in . These pointed elements exhaust the basis.
Provenance statement
References
- A. Berenstein and A. Zelevinsky, Quantum cluster algebras , Adv. Math. 195 (2005), no. 2, 405--455. arXiv:math/0404446 (https://arxiv.org/abs/math/0404446).arXiv
- K. Lee, L. Li, D. Rupel, and A. Zelevinsky, Greedy bases in rank 2 quantum cluster algebras , Proc. Natl. Acad. Sci. USA 111 (2014), no. 27, 9712--9716. arXiv:1405.2311 (https://arxiv.org/abs/1405.2311).arXiv