Ptolemy cluster algebras

introduction

• to any triangulation of n-gon, we can assoicate a mutation matrix which is skew-symmetric
• If we set all the boundary of triangle as 1, we get cluster algebra without coefficient.

related items

• Cluster algebras of geometric type

computational resource

• https://docs.google.com/file/d/0B8XXo8Tve1cxem5IR2ZRbjFjQmM/edit?usp=drivesdk
• http://demonstrations.wolfram.com/PolygonTriangulations/