摘要

Let [image omitted] (resp., [image omitted]) be the simple vertex operator algebra associated to affine Lie algebra of type [image omitted] (resp., [image omitted]) with the lowest admissible half-integer level [image omitted]. We show that [image omitted] is a vertex subalgebra of [image omitted] with the same conformal vector. For =4, [image omitted] is a vertex subalgebra of three copies of [image omitted] contained in [image omitted], and all five of these vertex operator algebras have the same conformal vector.

  • 出版日期2010