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A group (chosen randomly, the groups with 6 and those 8 elements are available) is given by its multiplication table. The task is to check whether the group is commutative, to identify all elements of order ≤2, and to find a subgroup which has half as many elements as the given group.
(In German.)
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said | Ready to use | 4 years, 4 months ago |
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Ulrich Görtz 4 years, 4 months ago
Published this.Ulrich Görtz 4 years, 4 months ago
Gave some feedback: Ready to use
Ulrich Görtz 4 years, 4 months ago
Created this.There is only one version of this question that you have access to.
Name | Type | Generated Value |
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groups | list |
Nested 7×5 list
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gp | list |
List of 5 items
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table | matrix |
Matrix of size 8×8
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name | string |
C8
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is_commutative | boolean |
true
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symbols | list |
List of 8 items
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order | number |
8
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elts_of_order2 | set |
set(5,1)
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subgp | set |
set(1,3,5,7)
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latex_table | string |
\begin\{array\}\{c|cccccccc\}
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tt | boolean |
false
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Generated value: list
[ [ "C6", [ [ 1, 2, 3, 4, 5, 6 ], [ 2, 3, 4, 5, 6, 1 ], [ 3, 4, 5, 6, 1, 2 ], [ 4, 5, 6, 1, 2, 3 ], [ 5, 6, 1, 2, 3, 4 ], [ 6, 1, 2, 3, 4, 5 ] ], true, [ 4 ], [ 1, 3, 5 ] ], [ "S3", [ [ 1, 2, 3, 4, 5, 6 ], [ 2, 3, 1, 6, 4, 5 ], [ 3, 1, 2, 5, 6, 4 ], [ 4, 5, 6, 1, 2, 3 ], [ 5, 6, 4, 3, 1, 2 ], [ 6, 4, 5, 2, 3, 1 ] ], false, [ 4, 5, 6 ], [ 1, 2, 3 ] ], [ "C8", [ [ 1, 2, 3, 4, 5, 6, 7, 8 ], [ 2, 3, 4, 5, 6, 7, 8, 1 ], [ 3, 4, 5, 6, 7, 8, 1, 2 ], [ 4, 5, 6, 7, 8, 1, 2, 3 ], [ 5, 6, 7, 8, 1, 2, 3, 4 ], [ 6, 7, 8, 1, 2, 3, 4, 5 ], [ 7, 8, 1, 2, 3, 4, 5, 6 ], [ 8, 1, 2, 3, 4, 5, 6, 7 ] ], true, [ 5 ], [ 1, 3, 5, 7 ] ], [ "C4C2", [ [ 1, 2, 3, 4, 5, 6, 7, 8 ], [ 2, 3, 4, 1, 6, 7, 8, 5 ], [ 3, 4, 1, 2, 7, 8, 5, 6 ], [ 4, 1, 2, 3, 8, 5, 6, 7 ], [ 5, 6, 7, 8, 1, 2, 3, 4 ], [ 6, 7, 8, 5, 2, 3, 4, 1 ], [ 7, 8, 5, 6, 3, 4, 1, 2 ], [ 8, 5, 6, 7, 4, 1, 2, 3 ] ], true, [ 3, 5, 7 ], [ 1, 2, 3, 4 ] ], [ "C2C2C2", [ [ 1, 2, 3, 4, 5, 6, 7, 8 ], [ 2, 1, 4, 3, 6, 5, 8, 7 ], [ 3, 4, 1, 2, 7, 8, 5, 6 ], [ 4, 3, 2, 1, 8, 7, 6, 5 ], [ 5, 6, 7, 8, 1, 2, 3, 4 ], [ 6, 5, 8, 7, 2, 1, 4, 3 ], [ 7, 8, 5, 6, 3, 4, 1, 2 ], [ 8, 7, 6, 5, 4, 3, 2, 1 ] ], true, [ 2, 3, 4, 5, 6, 7, 8 ], [ 1, 2, 3, 4 ] ], [ "D8", [ [ 1, 2, 3, 4, 5, 6, 7, 8 ], [ 2, 3, 4, 1, 8, 5, 6, 7 ], [ 3, 4, 1, 2, 7, 8, 5, 6 ], [ 4, 1, 2, 3, 6, 7, 8, 5 ], [ 5, 6, 7, 8, 1, 2, 3, 4 ], [ 6, 7, 8, 5, 4, 1, 2, 3 ], [ 7, 8, 5, 6, 3, 4, 1, 2 ], [ 8, 5, 6, 7, 2, 3, 4, 1 ] ], false, [ 3, 5, 6, 7, 8 ], [ 1, 2, 3, 4 ] ], [ "Q", [ [ 1, 2, 3, 4, 5, 6, 7, 8 ], [ 2, 5, 4, 7, 6, 1, 8, 3 ], [ 3, 8, 5, 2, 7, 4, 1, 6 ], [ 4, 3, 6, 5, 8, 7, 2, 1 ], [ 5, 6, 7, 8, 1, 2, 3, 4 ], [ 6, 1, 8, 3, 2, 5, 4, 7 ], [ 7, 4, 1, 6, 3, 8, 5, 2 ], [ 8, 7, 2, 1, 4, 3, 6, 5 ] ], false, [ 5 ], [ 1, 3, 5, 7 ] ] ]
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This question is used in the following exam:
- Gruppen by Ulrich Görtz in Lineare Algebra 1.