Let G be an abelian group of order 9. Prove that G is either cyclic or is isomorphic to a direct product of two groups each of order 3.

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.4: Cosets Of A Subgroup
Problem 17E: Show that a group of order 4 either is cyclic or is isomorphic to the Klein four group e,a,b,ab=ba.
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Let G be an abelian group of order 9. Prove
that G is either cyclic or is isomorphic to a
direct product of two groups each of order 3.
Transcribed Image Text:Let G be an abelian group of order 9. Prove that G is either cyclic or is isomorphic to a direct product of two groups each of order 3.
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