R Borcherds 1986 vertex-operator-algebras (Fields 1998); monstrous-moonshine; modern modular-tensor-category basis 2D-CFT chiral-algebras.
R Borcherds 1986 vertex-operator-algebras (Fields 1998); monstrous-moonshine; modern modular-tensor-category basis 2D-CFT chiral-algebras.