Minimal determining sets for certain $W$-graph ideals

Autor: Thomas McDonough, Christos Pallikaros
Jazyk: angličtina
Rok vydání: 2023
Předmět:
Zdroj: International Journal of Group Theory, Vol 12, Iss 3, Pp 123-151 (2023)
Druh dokumentu: article
ISSN: 2251-7650
2251-7669
DOI: 10.22108/ijgt.2022.131838.1764
Popis: We consider Kazhdan-Lusztig cells of the symmetric group $S_n$ containing the longest element of a standard parabolic subgroup of $S_n$. Extending some of the ideas in [Beiträge zur Algebra und Geometrie, 59 (2018) no.~3 523--547] and [Journal of Algebra and Its Applications, 20 (2021) no.~10 2150181], we determine the rim of some additional families of cells and also of certain induced unions of cells. These rims provide minimal determining sets for certain $W$-graph ideals introduced in [Journal of Algebra, 361 (2012) 188--212].
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