English

Dipper-James-Murphy's conjecture for Hecke algebras of type B

Representation Theory 2007-12-11 v2

Abstract

We prove a conjecture by Dipper, James and Murphy that a bipartition is restricted if and only if it is Kleshchev. Hence the restricted bipartitions naturally label the crystal graphs of level two irreducible integrable Uv(sl^e)\mathcal{U}_v({\hat{\mathfrak{sl}}_e})-modules and the simple modules of Hecke algebras of type BnB_n.

Keywords

Cite

@article{arxiv.math/0703447,
  title  = {Dipper-James-Murphy's conjecture for Hecke algebras of type B},
  author = {Susumu Ariki and Nicolas Jacon},
  journal= {arXiv preprint arXiv:math/0703447},
  year   = {2007}
}

Comments

The revised version corrects minor points, the proof of lemma 3.3 has been improved