MA743 Algebraic Number Theory I Fall 2002 Professor: Dan Abramovich Office: MCS 232 Phone: 353-9547 E-mail: abrmovic@bu.edu Course meets: Mon,Wed,Fri 10:00-11:00am at MCS B29 Office hour: (TBA) Mon 2-3, W,F 11-12 Text: Number Fields, by Daniel A. Marcus Prerequisites: MA741-742 or equivalent understanding of graduate level algebra. Basic complex analysis. Material covered: Chapters 1-7 Number fields and Rings of integers; Prime decomposition, ramification and splitting; Algebraic invariants: discriminant, ideal class group, unit group; The Zeta function; The Class Number Formula. Homework will be assigned but not graded. A biweekly portion of class or additional time will be devoted to problems. Grades based on two take-home exams, which will in turn be based on homework-type problems. The book has the advantage that we can quickly get to significant material without an enormous amount of preliminary topics. It has the disadvantage that it ignores, or sometimes delegates to the exercises, material which a serious number theorist must know, like localization in number rings, differents, fractional ideals, and more. An alternative to one take-home exam will be to study and write a summary of one of these omitted topics.