DATE	SPEAKER	TITLE (click for an abstract)
September 3	Lauren Williams	What is a cluster algebra?
September 10	Steven Karp	Some motivating examples from total positivity (TP matrices, flag TP matrices, the positive Grassmannian)
September 17	Steven Karp	Continuation of previous lecture
September 24	Adam Kalman	Rank 2 cluster algebras
October 1	Adam Kalman	Rank 2 cluster algebras (continued)
October 8	Adam Kalman and Alex Zorn	Rank 2 cluster algebras (finish) and finite type classification (begin)
October 15	Alex Zorn	the finite type classification of cluster algebras
October 22	no seminar
October 29	no seminar
November 5	Adam Kalman	The Laurent phenomenon
November 12	Frank Ban	The positivity conjecture
November 19	Emmanuel Tsukerman	Cluster algebras from surfaces
November 26	Harold Williams	Introduction to the preprojective algebra and cluster algebras
December 3	Alexander Shapiro	Cluster algebras and integrable systems (the pentagram map)

Some references Total positivity and cluster algebras by Fomin Cluster algebras: an introduction by Williams Positivity and canonical bases in rank 2 cluster algebras by Sherman and Zelevinsky Positivity for cluster algebras by Lee and Schiffler