In: Advanced Math
Consider the permutation ρ = (1, 2, 6)(3, 4, 5) in S10. How many conjugates does ρ has in S10? Hence determine the order of Cρ(S10), the centralizer of ρ in S10. Now determine the order of Cρ(A10) by observing that there is an odd permutation in Cρ(S10). How many conjugates does ρ has as an element of A10?