Direct product of Z16 and V4

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Definition

This group is defined as the uses as intermediate construct:external direct product of the cyclic group of order 16 and Klein four-group (i.e., the elementary abelian group of order four). In other words, it is given by the presentation:

G:=a,b,ca16=b2=c2=e,ab=ba,bc=cb,ac=ca.

It is the abelian group of prime power order corresponding to the prime 2 and the partition 6=4+1+1.

Arithmetic functions

Function Value Explanation
order 64
exponent 16
nilpotency class 1
derived length 1
Frattini length 4
Fitting length 1
minimum size of generating set 3
subgroup rank 3
rank as p-group 3
normal rank as p-group 3
characteristic rank as p-group 3

Group properties

Property Satisfied? Explanation
cyclic group No
homocyclic group No
metacyclic group No
elementary abelian group No
abelian group Yes
nilpotent group Yes
solvable group Yes

GAP implementation

Group ID

This finite group has order 64 and has ID 183 among the groups of order 64 in GAP's SmallGroup library. For context, there are groups of order 64. It can thus be defined using GAP's SmallGroup function as:

SmallGroup(64,183)

For instance, we can use the following assignment in GAP to create the group and name it G:

gap> G := SmallGroup(64,183);

Conversely, to check whether a given group G is in fact the group we want, we can use GAP's IdGroup function:

IdGroup(G) = [64,183]

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 defined using GAP's DirectProduct, CyclicGroup, and ElementaryAbelianGroup as:

DirectProduct(CyclicGroup(16),CyclicGroup(2),CyclicGroup(2))

or

DirectProduct(CyclicGroup(16),ElementaryAbelianGroup(4))