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math.RT2008
Vertex operators and sporadic groups
John F. Duncan
In the 1980's, the work of Frenkel, Lepowsky and Meurman, along with that of Borcherds, culminated in the notion of vertex operator algebra, and an example whose full symmetry grou…
math.RT2008★ 7 cited
Arithmetic groups and the affine E8 Dynkin diagram
John F. Duncan
Several decades ago, John McKay suggested a correspondence between nodes of the affine E8 Dynkin diagram and certain conjugacy classes in the Monster group. Thanks to Monstrous Moo…