Drexel dragonThe Math ForumDonate to the Math Forum

Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.

Math Forum » Discussions » sci.math.* » sci.math

Topic: constant gauss curvature surfaces
Replies: 5   Last Post: Jul 22, 2013 2:51 PM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]

Posts: 356
Registered: 9/16/06
constant gauss curvature surfaces
Posted: Apr 22, 2013 4:59 AM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

For surfaces z = f( r, theta ) in polar coordinates,

z = f( r ) surfaces of revolution exist. (examples: sphere and pseudosphere)

But z = f( th ) twisted surfaces do not and cannot exist.

Is this correct?

Also, constant negative gauss curvature ruled surfaces do not exist.

Is this correct? If not, what are some examples ?



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© The Math Forum 1994-2015. All Rights Reserved.