Degree (algebra)

The degree of some algebraic structure is some parameter that describes the structure. There is no universal definition valid for all structures, it is a per structure type thing.

This is particularly useful when talking about structures with an infinite number of elements, but it is sometimes also used for finite structures.

Examples:

the dihedral group of degree n acts on n elements, and has order 2n
the parameter $n$ that characterizes the size of the general linear group $G L (n)$ is called the degree of that group, i.e. the dimension of the underlying matrices

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