Ptolemy Relation and Friends: Resources

by Anna Felikson

This page contains some additional links to my AMR review "Ptolemy Relation and Friends". See also my talk (1 hour) and slides.

Ptolemy Theorem:

Some advanced/exotic versions of Ptolemy:

Friezes and SL2-tilings:

Hyperbolic Ptolemy:

Grassmannians and cluster algebras:

Cluster algebras:

Ptolemy spaces: