Character formulas for Feigin-Stoyanovsky's type subspaces of standard -modules
arXiv:1105.2927
Abstract
Exact sequences of Feigin-Stoyanovsky's type subspaces for affine Lie algebra lead to systems of recurrence relations for formal characters of those subspaces. By solving the corresponding system for , we obtain a new family of character formulas for all Feigin-Stoyanovsky's type subspaces at general level.
16 pages