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Cellularity of the p-Canonical Basis for Symmetric Groups (2009.11715v1)
Published 24 Sep 2020 in math.RT, math.CO, and math.GR
Abstract: For symmetric groups we show that the p-canonical basis can be extended to a cell datum for the Iwahori-Hecke algebra H and that the two-sided p-cell preorder coincides with the Kazhdan-Lusztig two-sided cell preorder. Moreover, we show that left (or right) p-cells inside the same two-sided p-cell for Hecke algebras of finite crystallographic Coxeter systems are incomparable (Property A).