The Berenstein–Kirillov group and cactus groups

Autor: Max Glick, Michael Chmutov, Pavlo Pylyavskyy
Rok vydání: 2020
Předmět:
Zdroj: Journal of Combinatorial Algebra. 4:111-140
ISSN: 2415-6302
Popis: Berenstein and Kirillov have studied the action of Bender-Knuth moves on semistandard tableaux. Losev has studied a cactus group action in Kazhdan-Lusztig theory; in type $A$ this action can also be identified in the work of Henriques and Kamnitzer. We establish the relationship between the two actions. We show that the Berenstein-Kirillov group is a quotient of the cactus group. We use this to derive previously unknown relations in the Berenstein-Kirillov group. We also determine precise implications between subsets of relations in the two groups, which yields a presentation for cactus groups in terms of Bender-Knuth generators.
Databáze: OpenAIRE