Classification of metacyclic p-groups

This page classifies all finite $$p$$-groups that are metacyclic: there is a cyclic normal subgroup with a cyclic quotient group.

Related facts

 * Classification of finite p-groups with cyclic maximal subgroup
 * Classification of finite p-groups with self-centralizing cyclic normal subgroup

First step of the classification: classifying for fixed normal subgroup and fixed quotient
Let $$k,l$$ be natural numbers. We first determine all congruence classes of extensions (up to automorphism of the normal subgroup and of the quotient) with a cyclic normal subgroup of order $$p^k$$ and a cyclic quotient group of order $$p^l$$.

(Note that at this step of the classification, we may get different groups that are isomorphic as groups, but not equivalent as extensions with the specified normal subgroup and specified quotient.