Math 5378, Spring 2013

Homework 3

Due Wednesday, February 13

The problem set is due at the beginning of class on Wednesday.

Reading: Chapter 7 through page 128.

Problems: Chapter 7:     1, 2, 3, 5 (See a hint on this problem on our News page).

Problem G: We have covered the sphere S2 with six coordinate charts. In fact, two coordiante charts would have suffice using different local parametrizations. Find a two-chart description of the sphere.

Problem H: Let V be an open subset in R3 and S1, S2 regular surfaces with S1 contained in V. Let f: V → R3 be a differentiable map with f(S1) contained in S2. Show that f restricted to S1 is differentiable in the sense of Definition 7.7.

Last modified: (2013-02-12 15:24:36 CST)