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The maximal subgroups of \(J_ 4\). (English) Zbl 0619.20004
We determine completely the conjugacy classes of maximal subgroups of Janko’s largest sporadic simple group \(J_ 4\). Besides those listed in the ”ATLAS of Finite Groups” there are two further classes of maximal subgroups, isomorphic to \(M_{22}:2\) and \(U_ 3(3)\).

MSC:
20D08 Simple groups: sporadic groups
20D30 Series and lattices of subgroups
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