Supercharacter theories for groups of order 4

This article gives specific information, namely, supercharacter theories, about a family of groups, namely: groups of order 4.
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Group	GAP ID (second part)	Defining feature	Superchracter theories page
cyclic group:Z4	1	unique cyclic group of order 4	supercharacter theories for cyclic group:Z4
Klein four-group	2	unique elementary abelian group of order 4; also a direct product of two copies of cyclic group:Z2.	supercharacter theories for Klein four-group