Math 104A (Number
Theory)  Fall 2007
Professor: CRISTIAN D.
POPESCU  Lectures: MWF 10:0010:50am, in AP&M B412
Office Hours: Mo. & We.
11:00  12:00, in AP&M 6256.
Office: AP&M
6256;
Phone: 8585346297; Email: cpopescu@math.ucsd.edu
Teaching Assistant: JOEL DODGE
 Discussion Section: T 88:50am, in YORK 4080A
Office Hours: Tu. & Fr.
11:0012:00,
in AP&M
6351
Email: jrdodge@math.ucsd.edu
COURSE DESCRIPTION
WHAT IS MATH 104A? This is the first
undergraduate course in number theory. In this course we examine topics
from
elementary number theory and we focus on five major themes: 1)
Divisibility; 2) Multiplicative Functions; 3) Congruence Theory; 4)
Quadratic Residues; 5) Algebraic Numbers and Integers (time permitting).
TEXT Rose, H. E., A Course in Number Theory, Second Edition
(Oxford Science Publ., 1994). You
are expected to read the text BEFORE each lecture.
EXAMS
 Midterm I  Monday, October 22, 10:00am, in AP&M B412. Topics:
Chapter 1. Midterm
1 has been postponed to Monday, October 29 !
 Midterm II  Friday, November 30, 10:00am, in AP&M
B412. Topics:
Chapters 2, 3.
 Final Exam  Friday, December 14,
8:0011:00am. Location: TBA. Topics:
Chapters 1, 2, 3.

No notes, textbooks, calculators
are allowed during exams. No makeup exams will be given and no late
homework will be accepted. Cheating on an exam results in 0 points for
that exam, as well as
further disciplinary action. Please
read very carefully the following ACADEMIC
INTEGRITY GUIDELINES.
GRADING POLICY
 Midterms 1+2: 20% each; Final Exam: 40%;
Homework: 20%. The grading will be done on a curve, the median
corresponding to a B/C+.
GETTING HELP
Help with mathematical problems:
 Section: Ask
questions in section  this is one of the main reasons why sections
exist.
 Office Hours: You
are strongly advised to take full advantage of your professor's and
ta's office
hours.
 Classmates: Sometimes
a classmate can help. Sometimes you can learn by working out problems
together with your classmates.
Help with personal problems which
affect your class work:
 Talk to the professor or, if appropriate, your
college provost.