Tuesday
September 30, 2014

Homework Help: college math

Posted by ml on Monday, October 14, 2013 at 8:13pm.

The classification of closed orientable surfaces says that they are all spheres with a certain number of handles attached. For example, a sphere is a sphere with 0 handles. A torus is a sphere with one handle. A two holed torus is a sphere with two handles etc. How does one "attach a handle"? Think of puncturing a surface as "removing a lid". After all if you make a puncture, you can stretch out the hole into a square shape which you can think of as being the ghost of a panel in the construction of the original surface. So the puncture is removing a lid. What does "removing a lid" do to the Euler characteristic and number of boundary curves?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

math - The classification of closed orientable surfaces says that they are all ...
Physics - Three identical conducting spheres initially have the following ...
college physics - Two solid spheres A and B are made from the same material. The...
college physics - Two solid spheres A and B are made from the same material. The...
physics/chem - n Fig. 21-41, three identical conducting spheres initially have ...
Urgent : Electricity and Magnetism - Two charged spheres are kept at a great ...
science - two equally charged spheres, X and Y, repel each other with a force of...
physics - consider three identical metal spheres a b and c. sphere a carries a ...
Physics - Consider three identical metal spheres, A, B, and C. Sphere A carries ...
physics - Consider three identical metal spheres, A, B, and C. Sphere A carries ...

Search
Members