Examples of The Regular Group Representation
Z2 = {0,1} with addition modulo 2; group element 0 corresponds to the identity permutation e, group element 1 to permutation (12).
Z3 = {0,1,2} with addition modulo 3; group element 0 corresponds to the identity permutation e, group element 1 to permutation (123), and group element 2 to permutation (132). E.g. 1 + 1 = 2 corresponds to (123)(123)=(132).
Z4 = {0,1,2,3} with addition modulo 4; the elements correspond to e, (1234), (13)(24), (1432).
The elements of Klein four-group {e, a, b, c} correspond to e, (12)(34), (13)(24), and (14)(23).
S3 (dihedral group of order 6) is the group of all permutations of 3 objects, but also a permutation group of the 6 group elements:
| * | e | a | b | c | d | f | permutation |
|---|---|---|---|---|---|---|---|
| e | e | a | b | c | d | f | e |
| a | a | e | d | f | b | c | (12)(35)(46) |
| b | b | f | e | d | c | a | (13)(26)(45) |
| c | c | d | f | e | a | b | (14)(25)(36) |
| d | d | c | a | b | f | e | (156)(243) |
| f | f | b | c | a | e | d | (165)(234) |
Read more about this topic: Cayley's Theorem
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