Geometry of mutation classes of rank $3$ quivers

Abstract

We present a geometric realization for all mutation classes of quivers of rank $3$ with real weights. This realization is via linear reflection groups for acyclic mutation classes and via groups generated by $\pi$-rotations for the cyclic ones. The geometric behavior of the model turns out to be controlled by the Markov constant $p^2+q^2+r^2-pqr$, where $p,q,r$ are the elements of exchange matrix. We also classify skew-symmetric mutation-finite real $3\times 3$ matrices and explore the structure of acyclic representatives in finite and infinite mutation classes.

27 pages, 11 figures; v3:minor expository changes

References in corpus (1)

• Acyclic cluster algebras, reflection groups, and curves on a punctured disc

Cited by in corpus (1)

• Discrete Dynamical Systems From Real Valued Mutation