A Concrete Introduction to Higher Algebra (Undergraduate Texts in Mathematics)

A Concrete Introduction to Higher Algebra (Undergraduate Texts in Mathematics) by Childs, Lindsay N.. hardcover edition. ISBN: 9780387745275.

This book is written as an introduction to higher algebra for students with a background of a year of calculus. It has been used as a successful undergraduate text for more than 20 years. The objective of the book is to give students enough experience in the algebraic theory of the integers and polynomials to appreciate the basic concepts of abstract algebra. New sections on Luhns formula, Cosets and equations, and detaching coefficients are included. The later chapters include expositions of Rabiins probabilistic primality test, quadratic reciprocity, and the classification of finite fields. Over 900 exercises, ranging from routine examples to extensions of theory, are found throughout the book; hints and answers for many of them are included in an appendix.