The Subgroups of Finite Metacyclic Groups |
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Authors: | Xu YANG |
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Institution: | School of Mathematical Sciences, Fudan University,Shanghai 200433, China. |
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Abstract: | In this paper, the author characterizes the subgroups of a finite
metacyclic group $K$ by building a one to one correspondence between
certain 3-tuples $(k,l,\beta)\in \mathbb{N}^3$ and all the subgroups
of $K$. The results are applied to compute some subgroups of $K$ as
well as to study the structure and the number of $p$-subgroups of
$K$, where $p$ is a fixed prime number. In addition, the author gets
a factorization of $K,$ and then studies the metacyclic $p$-groups,
gives a different classification, and describes the characteristic
subgroups of a given metacyclic $p$-group when $p\geq3$. A
``reciprocity'' relation on enumeration of subgroups of a metacyclic
group is also given. |
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Keywords: | Metacyclic groups Subgroups Metacyclic $p$-groups Characteristic subgroups |
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