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Suitable for senior undergraduates and beginning graduate students in mathematics, this book is an introduction to algebraic number theory at an elementary level. Prerequisites are kept to a minimum, and numerous examples illustrating the material occur throughout the text. References to suggested readings and to the biographies of mathematicians who have contributed to the development of algebraic number theory are provided at the end of each chapter. Other features include over 320 exercises, an extensive index, and helpful location guides to theorems in the text.
List of contents
Introduction; 1. Integral domains; 2. Euclidean domains; 3. Noetherian domains; 4. Elements integral over a domain; 5. Algebraic extensions of a field; 6. Algebraic number fields; 7. Integral bases; 8. Dedekind domains; 9. Norms of ideals; 10. Decomposing primes in a number field; 11. Units in real quadratic fields; 12. The ideal class group; 13. Dirichlet's unit theorem; 14. Applications to diophantine equations.
Summary
An introduction to algebraic number theory for senior undergraduates and beginning graduate students in mathematics. It includes numerous examples, and references to further reading and to biographies of mathematicians who have contributed to the development of the subject. Includes over 320 exercises, and an extensive index.
