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In group theory, a metacyclic group is an extension of a cyclic group by a cyclic group. That is, it is a group G for which there is a short exact sequence

\( 1 \rightarrow K \rightarrow G \rightarrow H \rightarrow 1,\, \)

where H and K are cyclic. Equivalently, a metacyclic group is a group G having a cyclic normal subgroup N, such that the quotient G/N is also cyclic.


Metacyclic groups are both supersolvable and metabelian.


A. L. Shmel'kin (2001), "Metacyclic group", in Hazewinkel, Michiel, Encyclopedia of Mathematics, Springer, ISBN 978-1-55608-010-4

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