An element is called a square if it can be expressed in the form b2for some b. Suppose that G is an Abelian group and H is a subgroupof G. If every element of H is a square and every element of G/H isa square, prove that every element of G is a square. Does your proofremain valid when “square” is replaced by “nth power,” where n isany integer?
An element is called a square if it can be expressed in the form b2for some b. Suppose that G is an Abelian group and H is a subgroupof G. If every element of H is a square and every element of G/H isa square, prove that every element of G is a square. Does your proofremain valid when “square” is replaced by “nth power,” where n isany integer?
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter4: More On Groups
Section4.8: Some Results On Finite Abelian Groups (optional)
Problem 15E: 15. Assume that can be written as the direct sum , where is a cyclic group of order .
Prove that...
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An element is called a square if it can be expressed in the form b2
for some b. Suppose that G is an Abelian group and H is a subgroup
of G. If every element of H is a square and every element of G/H is
a square, prove that every element of G is a square. Does your proof
remain valid when “square” is replaced by “nth power,” where n is
any integer?
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