Abstract Algebra : An Interactive Approach, Second Edition book cover
2nd Edition

Abstract Algebra
An Interactive Approach, Second Edition

ISBN 9781498719766
Published February 12, 2016 by Chapman and Hall/CRC
649 Pages 41 B/W Illustrations

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Book Description

The new edition of Abstract Algebra: An Interactive Approach presents a hands-on and traditional approach to learning groups, rings, and fields. It then goes further to offer optional technology use to create opportunities for interactive learning and computer use.

This new edition offers a more traditional approach offering additional topics to the primary syllabus placed after primary topics are covered. This creates a more natural flow to the order of the subjects presented. This edition is transformed by historical notes and better explanations of why topics are covered.

This innovative textbook shows how students can better grasp difficult algebraic concepts through the use of computer programs. It encourages students to experiment with various applications of abstract algebra, thereby obtaining a real-world perspective of this area.

Each chapter includes, corresponding Sage notebooks, traditional exercises, and several interactive computer problems that utilize Sage and Mathematica® to explore groups, rings, fields and additional topics.

This text does not sacrifice mathematical rigor. It covers classical proofs, such as Abel’s theorem, as well as many topics not found in most standard introductory texts. The author explores semi-direct products, polycyclic groups, Rubik’s Cube®-like puzzles, and Wedderburn’s theorem. The author also incorporates problem sequences that allow students to delve into interesting topics, including Fermat’s two square theorem.

Table of Contents

Integer Factorization
Modular Arithmetic
Rational and Real Numbers

Understanding the Group Concept
Introduction to Groups
Modular Congruence
The Definition of a Group

The Structure within a Group
Generators of Groups
Defining Finite Groups in Sage

Patterns within the Cosets of Groups
Left and Right Cosets
Writing Secret Messages
Normal Subgroups
Quotient Groups

Mappings between Groups
The Three Isomorphism Theorems

Permutation Groups
Symmetric Groups
Cayley's Theorem
Numbering the Permutations

Building Larger Groups from Smaller Groups
The Direct Product
The Fundamental Theorem of Finite Abelian Groups
Semi-Direct Products

The Search for Normal Subgroups
The Center of a Group
The Normalizer and Normal Closure Subgroups
Conjugacy Classes and Simple Groups
The Class Equation and Sylow's Theorems

Solvable and Insoluble Groups
Subnormal Series and the Jordan-Hölder Theorem
Derived Group Series
Polycyclic Groups
Solving the PyraminxTM

Introduction to Rings
The Definition of a Ring
Entering Finite Rings into Sage
Some Properties of Rings

The Structure within Rings
Quotient Rings and Ideals
Ring Isomorphisms
Homomorphisms and Kernels

Integral Domains and Fields
Polynomial Rings
The Field of Quotients
Complex Numbers
Ordered Commutative Rings

Unique Factorization
Factorization of Polynomials
Unique Factorization Domains
Principal Ideal Domains
Euclidean Domains

Finite Division Rings
Entering Finite Fields in Sage
Properties of Finite Fields
Cyclotomic Polynomials
Finite Skew Fields

The Theory of Fields
Vector Spaces
Extension Fields
Splitting Fields

Galois Theory
The Galois Group of an Extension Field
The Galois Group of a Polynomial in Q
The Fundamental Theorem of Galois Theory
Applications of Galois Theory

Appendix: Sage vs. Mathematica®

Answers to Odd-Numbered Problems


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William Paulsen, PhD, professor of mathematics, Arkansas State University, USA


Praise for previous editions:

"The textbook gives an introduction to algebra. The course includes the explanation on how to use the computer algebra systems GAP and Mathematica …The book can be used for an undergraduate-level course (chapter 1-4 and 9-12) or a second semester graduate-level course."
—Gerhard Pfister, Zentralblatt MATH