# AUTOMORPHISM GROUP OF GROUPS OF ORDER pqr

Document Type : Research Paper

Authors

Shahid Rajaee Teacher Training University

Abstract

H\"{o}lder in 1893 characterized all groups of order $pqr$ where  $p>q>r$ are prime numbers. In this paper,  by using new presentations of these groups, we compute their full automorphism group.

Keywords

#### References

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