COMPUTATIONAL PROBLEMS IN ABSTRACT ALGEBRA.
COMPUTATIONAL PROBLEMS IN ABSTRACT ALGEBRA.
COMPUTATIONAL PROBLEMS IN ABSTRACT ALGEBRA.
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180<br />
Degrc<br />
-<br />
No. Order t N (-63 Generators f Comments<br />
- - ---<br />
16 8 576 e.a.<br />
17<br />
18<br />
19<br />
20<br />
9 960 e.a.<br />
10 960 2 e.a.<br />
11 960 2 e.a.<br />
12 1152 e.a<br />
13 1920 e.a.<br />
14 1920 2 e.a.<br />
15 2880 2 e.a.<br />
16 5760 2 e.a.<br />
17 5760 2p e.a.<br />
18 11520 2p e.a.<br />
19 40320 3 e.a.<br />
20 ‘22560 3 e.a.<br />
21 $16! 14~ -<br />
22 16! 16 6G21<br />
1 17 -<br />
2 34 17Gl<br />
3 68 17Gl<br />
4 136 17Gl<br />
5 272 2 17Gl<br />
6 4080 3 -<br />
7 8160 3 17G6<br />
8 16320 3 17G6<br />
9 $17! 15p -<br />
10 17! 17 17G9<br />
1 2448 2p -<br />
2 4896 3 18Gl<br />
3 i-18! 16p -<br />
4 18! 18 18G3<br />
1 19 -<br />
2 38 19Gl<br />
3 57 19Gl<br />
4 114 19Gl<br />
5 171 19Gl<br />
6 342 2 19Gl<br />
7 ;. 19! 171 -<br />
8 19! 19 19G7<br />
1 3420 2p -<br />
2 6840 3 20Gl<br />
3 +.20! 18~ -<br />
4 20! 20 20G3<br />
-<br />
Charles C. Sims<br />
TABLE 1 (continued)<br />
15Gl<br />
15G2<br />
15G3<br />
15G4<br />
15G5<br />
15G6<br />
16G3<br />
16G6<br />
6GlC<br />
6G21<br />
6622<br />
17G4<br />
17G5<br />
17G9<br />
7GlC<br />
18G3<br />
18G4<br />
19G5<br />
19G6<br />
19G7<br />
19G8<br />
bl5, %6.&. g1m<br />
k,Lh,hl,<br />
a153 a16, h6<br />
wa5, a16, cl6<br />
a15, alBr f 16<br />
b157 a16y fiS, b-16,<br />
h 1 6<br />
a15, al,, ~1~<br />
al51 al67 k16 a16e15, %6, f 16<br />
a15e15p %Y k 16<br />
a,,, hi, %6<br />
%5, c15, %6<br />
b15, d15, al6<br />
d16, e15; aI6<br />
al7<br />
a17, b?,<br />
a17, b4l7<br />
a17, bf7<br />
a179 b17<br />
wk a16, cl7<br />
wh a16, d6, cl7<br />
a15e15y %6r e16Y '17<br />
a17, %, a18<br />
aI,, b17, al8<br />
al8<br />
alsl %<br />
a197 b:,<br />
b<br />
al,, 19<br />
a19, bf, agO<br />
al8, b9, %O<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
-<br />
A 16<br />
S 16<br />
PSL(2, 16)<br />
A 17<br />
S<br />
I&(2, 17)<br />
PGL(2, 17)<br />
A 18<br />
S 18<br />
A 19<br />
s<br />
P&(2,19)<br />
PGL(2, 19)<br />
40<br />
S 20<br />
5<br />
6<br />
7<br />
8<br />
Computational methods for permutation groups<br />
a = (1,2, 3,4, 5)<br />
b = (1) (2, 3, 534)<br />
a = (1,6) (2) (3,4) (5)<br />
a = (1,2, 3,4,5, 6,7)<br />
b = (1) (2,4,3,7,5,6)<br />
c = (1) (2,3) (4,7) (5) (6)<br />
a = Cl,81 (234) (3, 7) (5, 6)<br />
b = Cl,41 (2,8) (395) (67)<br />
c = (1, 7) (2, 5) (3, 8) (4, 6)<br />
d = (1, 8) (2, 7) (394) (5, 6)<br />
TABLE 2. Generating Permutations<br />
~=(1,2,3)(4,5,6)(7,8,9)<br />
b = (1, 4, 7) (2, 5, 8) (3, 6, 9)<br />
c = (1) (2, 6, 4, 9, 3, 8, 7, 5)<br />
d = (1) (2) (3) (4, 7) (5, 8) (6, 9)<br />
e = (1) (2, 4, 9) (3, 7, 5) (6) (8)<br />
f = (1) (2, 7) (3, 6) (4, 5) (8, 9)<br />
a = (1, 8) (2, 5, 6, 3) (4, 9, 7, 10)<br />
b = (1, 5, 7) (2, 9, 4) (3, 8, 10) (6)<br />
c = (1, 10) (2) (3) (4, 7) (5, 6) (8, 9)<br />
Permutations<br />
a = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)<br />
b = (1) (2, 3, 5, 9, 6, 11, 10, 8, 4, 7)<br />
c = (1, 11) (2, 7) (3, 5) (4, 6) (8) (9) (10)<br />
3 = (1) (2) (3) (4, 8) (5, 9) 6 7) (10, 11)<br />
z = (1, 12) (2, 11) (3, 6) (4, 8) (5, 9) (7, 10)<br />
5 = (1) (2, 5) (3, 6) (4, 7) (8) (9) (10) (11, 12)<br />
: = (1) (2) (3) (4, 7) (5, 8) (6, 9) (10) (11, 12)<br />
z = (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)<br />
i = (1) (2, 3, 5, 9, 4, 7, 13, 12, 10, 6, 11, 8)<br />
: = (1) (2, 3) (4) (5, 10) (6) (7, 11) (8) (9, 12) (13)<br />
I = (1, 14) (2, 13) (3, 7) (4, 5) (6) (8, 12) (9) (10, 11)<br />
I = (1, 15, 7, 5, 12) (2, 9, 13, 14, 8) (3, 6, 10, 11, 4)<br />
1 = (1, 4, 5) (2, 8, 10) (3, 12, 15) (6, 13, 11) (7, 9, 14)<br />
: = (1, 7) (2, 11) (3, 12) (4, 13) (5, 10) (6) (8, 14) (9) (15)<br />
! = (1, 9, 5, 14, 13, 2, 6) (3, 15, 4, 7, 8, 12, 11) (10)<br />
t = (1, 3,2) (4, 8, 12) (5, 11, 14) (6, 9, 15) (7, 10, 13)<br />
181<br />
[continued on p. I82/