On minimal faithful permutation representations of finite groups
The minimal faithful permutation degree μ(G) of a finite group G is the least positive integer n such that G is isomorphic to a subgroup of the symmetric group Sn. Let N be a normal subgroup of a finite group G. We prove that μ(G/N) ≤ μ(G) if G/N has
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|Source:||Bulletin of the Australian Mathematical Society|
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