AnIntroductiontoAbstract
Algebra
C.K.Taylor
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C.K. Taylor
An Introduction to Abstract Algebra
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An Introduction to Abstract Algebra
First edition
© 2013 C.K. Taylor & bookboon.com (Ventus Publishing ApS)
ISBN 978-87-403-0367-4
3
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An Introduction to Abstract Algebra
Contents
Contents
1
Preliminaries
7
1.1
Introduction to Abstract Algebra
7
1.2
Logic and Proof
11
1.3
Set heory
20
1.4
Mappings and Equivalence Relations
26
2
Group heory
36
2.1
Binary Operations
36
2.2
Introduction to Groups
39
2.3
Cyclic Groups
48
2.4
Dihedral Groups
51
2.5
Groups of Permutations
54
2.6
Alternating Groups
59
2.7
Subgroups
65
2.8
Homomorphisms and Isomorphisms
72
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An Introduction to Abstract Algebra
Contents
2.9
Cosets and Normal Subgroups
79
2.10
Quotient Groups
85
2.11
Direct Products
91
2.12
Catalog of Finite Groups
99
3
Field heory
103
3.1
Introduction to Fields
103
3.2
Polynomials
107
3.3
Irreduciblity
113
3.4
Vector Spaces
118
3.5
Extension Fields
122
3.6
Algebraic Extensions
125
3.7
Geometric Constructions
131
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