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Introduction to cluster algebras October 01, 2012 (04:10 PM PDT - 05:00 PM PDT)
Location: UC Berkeley, 60 Evans Hall
Speaker(s) Andrei Zelevinsky
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Cluster algebras are a class of commutative rings discovered by Sergey Fomin and the speaker about a decade ago. A cluster algebra of rank n has a distinguished set of generators (cluster variables) grouped into (possibly overlapping) n-subsets called clusters. These generators and relations among them are constructed recursively and can be viewed as discrete dynamical systems on a n-regular tree. The interest to cluster algebras is caused by their surprising appearance in a variety of settings, including quiver representations,
Poisson geometry, Teichmuller theory, non-commutative geometry, integrable systems, quantum field theory, etc. We will discuss the foundations of the theory of cluster algebras, with the focus on their algebraic and combinatorial structural properties.

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