English

Minimal determining sets for certain $W$-graph ideals

Representation Theory 2021-12-14 v1

Abstract

We consider Kazhdan-Lusztig cells of the symmetric group SnS_n containing the longest element of a standard parabolic subgroup of SnS_n. Extending some of the ideas in [Beitr{\"a}ge 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 WW-graph ideals introduced in [Journal of Algebra, 361 (2012), 188-212].

Keywords

Cite

@article{arxiv.2112.06239,
  title  = {Minimal determining sets for certain $W$-graph ideals},
  author = {T. P. McDonough and C. A. Pallikaros},
  journal= {arXiv preprint arXiv:2112.06239},
  year   = {2021}
}
R2 v1 2026-06-24T08:13:56.976Z