6.14. Let TT € S8 be the permutation defined by π(1) = 3, TT (2) = 8, TT (5) = 6, TT (6) = 1, (a) Prove that has order 4. {е, π, T², T³}. TT (3) = 5, π(7) = 7, T(4) = 4, TT (8) = 2. Let G be the subgroup for SÅ generated by ; i.e., G = (π) = (b) Describe all of the orbits of G, as was done in Example 6.18. (c) Let X = {1, 2, 3, 4, 5, 6, 7, 8}, so G acts on X. For each k E X, describe the stabilizer Gk.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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6.14. Let π E SÅ be the permutation defined by
TT (2) = 8,
T(1) = 3,
π(5) = 6,
TT (6) = 1,
TT (3) = 5,
π(7) = 7,
T(4) = 4,
π(8) = 2.
(a) Prove that ☛ has order 4. Let G be the subgroup for S8 generated by ; i.e., G
{е, π, T², T³}.
=
=
(π)
=
(b) Describe all of the orbits of G, as was done in Example 6.18.
(c) Let X
{1, 2, 3, 4, 5, 6, 7, 8}, so G acts on X. For each k € X, describe the stabilizer Gk.
(d) Use your data from (b) and (c) to explicitly verify the orbit-stabilizer counting formula in
Theorem 6.21. See (6.9) in Example 6.22 for a similar example.
Transcribed Image Text:6.14. Let π E SÅ be the permutation defined by TT (2) = 8, T(1) = 3, π(5) = 6, TT (6) = 1, TT (3) = 5, π(7) = 7, T(4) = 4, π(8) = 2. (a) Prove that ☛ has order 4. Let G be the subgroup for S8 generated by ; i.e., G {е, π, T², T³}. = = (π) = (b) Describe all of the orbits of G, as was done in Example 6.18. (c) Let X {1, 2, 3, 4, 5, 6, 7, 8}, so G acts on X. For each k € X, describe the stabilizer Gk. (d) Use your data from (b) and (c) to explicitly verify the orbit-stabilizer counting formula in Theorem 6.21. See (6.9) in Example 6.22 for a similar example.
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