34 citations · 157 across the 28 of their papers we have counts for
28 papers
Generalised Checkerboard Lattices
Atsushi Matsuo, Hiroki Shimakura
A series of integral lattices parametrised by integers are introduced and investigated, where is the rank of the lattice, including the root lattices described in a uni…
Automorphism groups of parafermion vertex operator algebras: general case
Ching Hung Lam, Xingjun Lin, Hiroki Shimakura
We complete the program for determining the full automorphism groups of all parafermion vertex operator algebras associated with simple Lie algebras and positive integral levels. W…
Automorphism groups and uniqueness of holomorphic vertex operator algebras of central charge
Koichi Betsumiya, Ching Hung Lam, Hiroki Shimakura
We describe the automorphism groups of all holomorphic vertex operator algebras of central charge with non-trivial weight one Lie algebras by using their constructions as simp…
Automorphism groups of cyclic orbifold vertex operator algebras associated with the Leech lattice and some non-prime isometries
Koichi Betsumiya, Ching Hung Lam, Hiroki Shimakura
We determine the automorphism groups of the cyclic orbifold vertex operator algebras associated with coinvariant lattices of isometries of the Leech lattice in the conjugacy classe…
Extra automorphisms of cyclic orbifolds of lattice vertex operator algebras
Ching Hung Lam, Hiroki Shimakura
In this article, we study the automorphism group of the cyclic orbifold of a vertex operator algebra associated with a rootless even lattice for a lift of a fixed-point free isomet…
Schellekens' List and the Very Strange Formula
Jethro van Ekeren, Ching Hung Lam, Sven Möller +1
In 1993 Schellekens proved that the weight-one space of a strongly rational, holomorphic vertex operator algebra of central charge 24 must be one of 71 Lie algebras. Duri…