Direct product of E9 and Z4
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Contents
Definition
This group is defined in the following equivalent ways:
- It is the direct product of the elementary abelian group of order nine and the cyclic group of order four.
- It is the direct product of the cyclic group of order twelve and the cyclic group of order three.
Arithmetic functions
Function | Value | Explanation |
---|---|---|
order | 36 | |
exponent | 12 |
GAP implementation
Group ID
This finite group has order 36 and has ID 8 among the groups of order 36 in GAP's SmallGroup library. For context, there are groups of order 36. It can thus be defined using GAP's SmallGroup function as:
SmallGroup(36,8)
For instance, we can use the following assignment in GAP to create the group and name it :
gap> G := SmallGroup(36,8);
Conversely, to check whether a given group is in fact the group we want, we can use GAP's IdGroup function:
IdGroup(G) = [36,8]
or just do:
IdGroup(G)
to have GAP output the group ID, that we can then compare to what we want.
Other descriptions
The group can be constructed using GAP's DirectProduct, ElementaryAbelianGroup, and CyclicGroup functions:
DirectProduct(ElementaryAbelianGroup(9),CyclicGroup(4))