Sets, Groups and Topology
Math 101 is intended for students who are interested in learning more
about math beyond calculus. The main goal of the course is to introduce
the practice of higher mathematics, with minimal prerequisites. We will
begin from a very basic standpoint and develop tools we need along the
way to work through a number of theorems and proofs from the main branches
of mathematics – geometry, analysis and algebra. You will learn about what
it means to "do" math by learning how to turn your own observations and
conjectures into formal statements backed up by rigorous arguments – proofs!
Prerequisites: As stated in the course catalog there are in principle
no real prerequisites for this course other than a serious interest in
mathematical reasoning. During the semester we will touch on topics from
calculus, and so some exposure to calculus would be helpful, but we won’t
require it. Math 21 or even Math 1 can be taken concurrently with this
course. Note, however, that Math 101 is not intended for students who are
taking or have taken Math 25 or Math 55.
Teachers:
Andy Engelward and Course Assistant(s) TBA
office: room 435 in the Science Center phone: (617) 495-4744
email: engelward@math.harvard.edu
Office Hours: Fridays from 12 to 2 and by appointment
Class Times: Tuesdays and Thursdays from 10 – 11:30 in room 507
and a weekly problem session, TBA
Course Website: http://www.math.harvard.edu/~engelwar/Math101
The website will be used for most of our course administration issues,
including homework assignment postings, posting of handouts, notes, problem
session times, etc.
Textbook: Proof, Logic and Conjecture by Robert Wolf is
available at the Coop (or online if you’d prefer). We will use this textbook
more as a reference throughout the semester, e.g. we will not be simply
working our way through the book in order. Readings and some problems will
be assigned out of the book, but will be taken from different sections
of the book. The real textbook for the course will come as a series of
notes that will be posted on the web as we progress through the semester
(along with some handouts in class).
Homework: The best way to learn math is by doing math, and the
homework assignments for this class will be an important part of the course.
There will be roughly a homework set per week due during the semester,
due at the beginning of class. In order to keep everyone up to speed and
in the same place during the semester, there will usually be no late homework
accepted. Course assistants will normally grade your homework and return
it to you within a week. Your lowest homework score from the semester will
be dropped before grades are calculated.
Weekly Problem Sessions, Group Projects: Doing math is
often much more productive and fun, when done with other students. There
are plenty of times when it pays off to mull over something on your own,
and this is important, but there are also times when talking through problems
with other mathematicians can make a huge difference in your understanding
of a problem. During the semester we will ask you to participate in some
group projects during the weekly problem sessions, usually during the last
part of the problem session. Topics to work on will be handed out and you
can then begin working on them together with a few other students. To simplify
the logistics, we will go ahead and assign groups in the beginning of the
semester, but in the second half of the semester we will let you form your
own groups if you’d like. About four times during the semester we will
ask for your group to eventually turn in the work you’ve been doing together
for a grade. Everyone in the group will receive the same grade for the
group effort.
Tests: We will have two midterm tests, one in-class test roughly
five weeks into the course (e.g. around March 8th or 10th),
and then a take home midterm about two thirds the way through the semester,
due in April. There will also be a standard, comprehensive three hour final
to be held during the regular exam period in May.
Grades: Midterm 1 – 15% Take Home Midterm – 20% Final – 30%
Homework – 25%
Group Work – 10%
Topics for the Semester:
Point Set Topology:
Closure Operators, Continuity, Connectedness, Homeomorphisms, The Game
of Hex and the Brouwer Fixed Point Theorem
Group Theory:
Basic Group Theory, Symmetry Groups, Impossibility Theorems, and some
other topics if time permits