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math.QA2008
W-algebras related to parafermion algebras
Chongying Dong, Ching Hung Lam, Hiromichi Yamada
We study a W-algebra of central charge 2(k-1)/(k+2) with k a positive integer greater than 1
math.QA2005
Ising vectors and automorphism groups of commutant subalgebras related to root systems
Ching Hung Lam, Shinya Sakuma, Hiroshi Yamauchi
In this article we study and obtain a classification of Ising vectors in vertex operator algebras associated to binary codes and times root lattices, where an Ising vect…
math.QA2004★ 1 cited
Vertex operator algebras, extended E_8 diagram, and McKay's observation on the Monster simple group
Ching Hung Lam, Hiromichi Yamada, Hiroshi Yamauchi
We study McKay's observation on the Monster simple group, which relates the 2A-involutions of the Monster simple group to the extended E_8 diagram, using the theory of vertex opera…