If you let G be a group and let g ∈ G, when the centralizer of g in G is denoted by C(g) and defined as C(g)={a∈G| ga=ag}. How do you prove that for any g, C(g) is a subgroup of G?
If you let G be a group and let g ∈ G, when the centralizer of g in G is denoted by C(g) and defined as C(g)={a∈G| ga=ag}. How do you prove that for any g, C(g) is a subgroup of G?
Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter3: Groups
Section3.3: Subgroups
Problem 29E: Let G be an abelian group. For a fixed positive integer n, let Gn={ aGa=xnforsomexG }. Prove that Gn...
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If you let G be a group and let g ∈ G, when the centralizer of g in G is denoted by C(g) and defined as
C(g)={a∈G| ga=ag}.
How do you prove that for any g, C(g) is a subgroup of G?
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