Wiedersehen Surface

An oriented surface for which every point belongs to a Wiedersehen pair. Proof of the Blaschke conjecture established that the only Wiedersehen surfaces are the standard round spheres.

See also

Blaschke Conjecture, Wiedersehen Pair

This entry contributed by Margherita Barile

Explore with Wolfram|Alpha


Blaschke, W. Vorlesung über Differentialgeometrie I. Berlin: Springer-Verlag, 1921.Klingenberg, W. Course in Differential Geometry. New York: Springer-Verlag, p. 164, 1978.

Referenced on Wolfram|Alpha

Wiedersehen Surface

Cite this as:

Barile, Margherita. "Wiedersehen Surface." From MathWorld--A Wolfram Web Resource, created by Eric W. Weisstein.

Subject classifications