# Groups Formed from $2\times 2$ Matrices over $Z_p$

by Gregor Olšavský (Pennsylvania State University)

Mathematics Magazine
October, 1990

Subject classification(s): Algebra and Number Theory | Abstract Algebra
Applicable Course(s): 4.2 Mod Algebra I & II | 4.13 Advanced Linear Algebra

The author provides, with derivations, a list of common groups (subgroups) associated to the $2\times 2$ matrices over $Z_{p}$ either additively or multiplicatively.

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