Abstract Algebra : An Interactive Approach, Second Edition (Paperback, 2 ed)

Preliminaries. Understanding the Group Concept. The Structure within a Group. Patterns within the Cosets of Groups. Mappings between Groups. Permutation Groups. Building Larger Groups from Smaller Groups. The Search for Normal Subgroups. Solvable and Insoluble Groups. Introduction to Rings. The Structure within Rings. Integral Domains and Fields. Unique Factorization. Finite Division Rings. The Theory of Fields. Galois Theory. Appendix: Sage vs. Mathematica®. Answers to Odd-Numbered Problems. Bibliography.