An upper bound on the exceptional characteristics for Lusztig%26apos;s character formula

作者:Fiebig Peter*
来源:Journal fur die Reine und Angewandte Mathematik, 2012, 673: 1-31.
DOI:10.1515/CRELLE.2011.170

摘要

We develop a Lefschetz theory in a combinatorial category associated to a root system and derive an upper bound on the exceptional characteristics for Lusztig%26apos;s formula for the simple rational characters of a reductive algebraic group. Our bound is huge compared to the Coxeter number.

  • 出版日期2012-12