MathCastle
Groups and FieldsSuperchallengeNormal Subgroups and Quotient Groups

Normal Subgroups and Quotient Groups · Superchallenge problem

In S4S_4, let H=⟨(1 2 3 4),(1 3)⟩H=\langle(1\,2\,3\,4),(1\,3)\rangle, a subgroup of order 88 containing the 44-cycle (1 2 3 4)(1\,2\,3\,4) and the transposition (1 3)(1\,3). How many distinct subgroups appear as conjugates gHg−1gHg^{-1} for g∈S4g\in S_4?