01196nam a2200205Ia 4500 CTU_22875 210402s9999 xx 000 0 und d 124.5df 512.7 C537 Lindsay N Childs A concrete introduction to high algebra Lindsay N Childs New York Springer-Verlag 1995 This book is an informal and readable introduction to higher algebra at the post-calculus level. The concept of ring and field are introduced through study of the familiar examples of the intergers and polymials. A strong emphasis on congruence classes leads in a natural way to finite groups and finite fields. The new examples and theory are built in a well-motivated fashion and made relevant by many applications - to crytography, coding, integration, history of mathematics, and especially to elementary and computational number theory. The book includes expositions of Rabin's probabilistic primality test, quadratic reciprocity, and the classification of finite fields algebra Minh, 980626 Trung tâm Học liệu Trường Đại học Cần Thơ