Date of Graduation

Spring 2016

Document Type

Honors Research Project

Degree Name

Bachelor of Science


Applied Mathematics - BS/MS

Research Sponsor

Dr. Jeffrey Riedl

First Reader

Dr. Hung Nguyen

Second Reader

Dr. James Cossey


Let M be the additive abelian group of 3-by-3 matrices whose entries are from the ring of integers modulo 9. The problem of determining all the normal subgroups of the regular wreath product group P=Z9≀(Z3 × Z3) that are contained in its base subgroup is equivalent to the problem of determining the subgroups of M that are invariant under two particular endomorphisms of M. In this thesis we give a partial solution to the latter problem by implementing a systematic approach using concepts from group theory and linear algebra.