Combinatorial bases of principal subspaces of modules for twisted affine Lie algebras of type A2l-1(2), Dl(2), E6(2) and D4(3)

摘要

We construct combinatorial bases of principal subspaces of standard modules of level k 1 with highest weight k0 for the twisted affine Lie algebras of type A2l-1(2), Dl(2), E6(2) and D4(3). Using these bases we directly calculate characters of principal subspaces.