Bases for upper cluster algebras and tropical points

Fan Qin (Shanghai Jiao Tong University)

Wednesday 2nd October 13:00-14:00 Maths 110

Abstract

It is known that many (upper) cluster algebras possess very different good bases which are parametrized by the tropical points of Langlands dual cluster varieties. For any given injective reachable upper cluster algebra, we describe all of its bases parametrized by the tropical points. In addition, we obtain the existence of the generic bases for such upper cluster algebras. Our results apply to many cluster algebras arising from representation theory, including quantized enveloping algebras, quantum affine algebras, double Bruthat cells, etc.

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