Date: Friday, November 17, 2017
Location: 4088 East Hall (4:10 PM to 5:00 PM)
Title: RobinsonSchenstedKnuth via quiver representations
Abstract:
The RobinsonSchenstedKnuth correspondence is a multifacetted jewel of algebraic combinatorics. I will explain a version of RSK which sends arbitrary labellings of a minuscule poset by nonnegative integers to orderpreserving labellings. This map can be described in terms of quiver representations. It can also be used to give a uniform explanation of the periodicity of a certain promotion operator on the orderpreserving labellings of the poset, by relating promotion to AuslanderReiten translation. I shall not assume familiarity with quiver representations in my talk. This is joint work with Al Garver and Becky Patrias.
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Speaker: Hugh Thomas
Institution: UQAM
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