Grading the Translation Functors in type A
Quantum Algebra
2009-05-04 v2
Abstract
We deal with the representation theory of quantum groups and Hecke algebras at roots of unity. We relate the philosophy of Andersen, Jantzen and Soergel on graded translated functors to the Lascoux, Leclerc and Thibon-algorithm. This goes via the Murphy standard basis theory and the idempotents coming from the Murphy-Jucys operators. Our results lead to a guess on a tilting algorithm outside the lowest alcove, which at least in the -case coincides with Erdmann's results.
Cite
@article{arxiv.math/0301285,
title = {Grading the Translation Functors in type A},
author = {Steen Ryom-Hansen},
journal= {arXiv preprint arXiv:math/0301285},
year = {2009}
}
Comments
Published version. Journal of Algebra. A typo (apparently introduced by the publishers) fixed. We thank Anton Cox for pointing it out