Talk:Willmore energy

integers

 * ... and all other critical values are integers greater than or equal to 4&pi;.

Or equal to? Could "integer multiples of 4&pi;" perhaps be intended? —Tamfang (talk) 06:24, 8 June 2014 (UTC)

Two easily fixable errors:
The section Critical points begins as follows:

"''A basic problem in the calculus of variations is to find the critical points and minima of a functional.

"For a given topological space, this is equivalent to finding the critical points of the function ..."

1) But the function given is the integral of squared mean curvature, which is the correct function for Willmore surfaces, not in general.

2) For a critical point to make sense, the domain on which it is a critical point must be specified. In the Willmore case, is this embedded surfaces of the same topological type, or is it something else? The meaning of "Willmore surface depends on the answer.2600:1700:E1C0:F340:5010:1D38:1AA5:812A (talk) 23:15, 19 September 2019 (UTC)