Frieze patterns from a geometric point of view: projective geometry and difference equations
De Valentin Ovsienko
Tate-Hochschild Homology and Cohomology of Modules and Cluster Algebras (1/4)
De Umamaheswaran Arunachalam
De David Jordan
Apparaît dans la collection : Higher Structures in Holomorphic and Topological Field Theory
Given a surface S, the moduli space of G-local systems on S equipped with a B-reduction and a T-framing at the boundary carries the structure of a cluster variety, by classic results of Fock and Goncharov. In essence, this means that there is a system of toric charts, and a compatible Poisson bracket, quadratic in each chart. Fock and Goncharov moreover quantized this structure by hand, giving rise to what they called a "quantum cluster ensemble".