Differential Geometry
TuTh 11:00am12:15pm in MSB403
Syllabus
Ralph
M. Kaufmann
Office: MSB M312 Phone: (860)
4863850 email: kaufmann@math.uconn.edu
Office hours: Tu 3:154pm, Th 12:15am1pm and by
appointment
Course
description
The basic idea and of differential
geometry is to say something about the geometry of an object by moving
a little bit on this object  for instance moving along a curve or on a
surface. Turning this approach into a questions it reads: what kind of
information can I get about my curve or my surface if I move a little
bit on them? It turns out that there is indeed a lot one can learn.
For a curve, one gets tangent directions, curvature and other geometric
information in this way. For a surface, there are 2d generalizations
of these concepts.
One
striking fact is that knowing this information everywhere allows you
for instance to discover that the earth is not flat. Furthermore it
allows to explain why there cannot be any maps of the earth which give
the right distances and angles at the same time. These types of
considerations are also the basis for the theory of general relativity.
In this course, we will treat curves and surfaces from the above
perspectives which lead us to the results discussed above. We will
provide a classical treatment, but the results and concepts have
applications in discretized versions for computer imaging and methods
of finite elements.
News:
Final coming up. Sample final posted below. Good luck to everybody.
Sample Midterm Questions
Sample Final Questions
Homework

Chapter/Section

Numbers

Due

HW0 (optional)

14
Reread e.g. Steward Multivariable calculus 5e Chapter 13 and do some
of the exercises
12

1b
1,4,5


HW1

13
15

4,6
1, 10 a,b)
12*

9/15/05

HW2

Prepare a ca 510min
presentation on "Your Favorite Plane Curve"**


10/4/05

HW3

22

1,2,4,10,16

10/27/05

HW4

Write an overview of the maping
techniques/functions used for the earth. ***


11/03/05

HW5

23

3, 4, 6, 10

11/10/05

HW6

24

3, 9, 10, 11

11/17/05

HW7

25
32

1 a,b),
3, 8 a

12/5/05

*means optional
**The basic idea is that you write down the equations for a curve, give
its geometric properties, relate them to the equation and maybe give
history and/or applications.
Check the famous curve index for a starting point. You can also pick an
example from the book or come up with something on your own.
Other references can be found in the library or at Mathworld and
Wikipedia.
If you would like, you can work in groups of up to 2 people (you do not
have to).
***You can for instance check the first pages of any good atlas for a
start.
Supplemental material: Linear Algebra, Differentiable Maps,
Jacobians and the Chain Rule
Background
Information on Topology