1
2
3
4
5
6
7
8
right first attempt
right
wrong

Group Theory  PS03EMTH08 (01-04-2019)
Question 1. The group     is non-abelian.
i)
S2
ii)
S3
iii)
5
iv)
6

Question 2. For a set S with 3 elements, the cardinality of A(S) is     .
i)
3
ii)
5
iii)
6
iv)
9

Question 3. The cycle (1,4,5,7) S7 does not commute with     .
i)
(3,6,5)
ii)
(5,7,1,4)
iii)
(6,2,3)
iv)
(3,6)

Question 4. A 5-cycle in S7 is     permutation
i)
an odd
ii)
an even
iii)
not a
iv)
a trivial

Question 5. Subgroup of order 3 in the permutation group S3 is     .
i)
non-abelian
ii)
not simple
iii)
normal
iv)
not unique

Question 6. The order of a 3-Sylow subgroup in the permutation group S9 is     .
i)
4
ii)
9
iii)
27
iv)
81

Question 7. The number of non-isomorphic abelian groups of order 36 is     .
i)
4
ii)
5
iii)
6
iv)
7

Question 8. The invariants of a non-cyclic abelian group of order 9 are     .
i)
9
ii)
1,1
iii)
2
iv)
3,3