Self-Dual Vertex Operator Superalgebras of Large Minimal Weight

Details Self-Dual Vertex Operator Superalgebras of Large Minimal Weight Self-Dual Vertex Operator Superalgebras of Large Minimal Weight

2008-01-11

arxiv.org/abs/0801.1822v1

Mathematics

Quantum Algebra

18 pages with 1 table, LaTeX

Scientific paper

The new general upper bound mu <= [c/24] + 1 for the minimal weight mu of a self-dual vertex operator superalgebra of central charge c different from 47/2 is proven. For central charges c <= 48, further improved estimates are given and examples of with large minimal weight are discussed. We also study the case of vertex operator superalgebras with N=1 supersymmetry which was first considered by Witten in connection with three-dimensional quantum gravity. The upper bound mu^* <= (1/2)[c/12]+1/2 for the minimal superconformal weight is obtained for c different from 47/2. In addition, we show that it is impossible that the monster sporadic group acts on an extremal self-dual N=1 supersymmetric vertex operator superalgebra of central charge 48 in a way proposed by Witten if certain standard assumptions about orbifold constructions hold. The same statement holds for extremal self-dual vertex operator algebras of central charge 48.

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