470 citations · 1.3k across the 62 of their papers we have counts for
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math.AG2014★ 12 cited
Finite groups of symplectic automorphisms of hyperkähler manifolds of type
Gerald Höhn, Geoffrey Mason
We determine the possible finite groups of symplectic automorphisms of hyperkähler manifolds which are deformation equivalent to the second Hilbert scheme of a K3 surface. We p…
math.QA2014★ 5 cited
Cleft Extensions and Quotients of Twisted Quantum Doubles
Geoffrey Mason, Siu-Hung Ng
Given a pair of finite groups and a normalized 3-cocycle of , where acts on as automorphisms, we consider quasi-Hopf algebras defined as a cleft extension $\B…