Talk:Wiedersehen pair

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[edit] Blaschke conjecture

I ran a Google scholar search on "Wiedersehen", and found this reference to a paper:

• Yang, CT (1980). "Odd-dimensional wiedersehen manifolds are spheres". Journal of Differential Geometry 15: 91-96. 

I don't have any easy way to check this paper, to see if it's right. But the claim made in the title implies that half of the "Blaschke conjecture" is no longer a conjecture, and that the only cases left open are even dimensions greater than 3. Can somebody check this out? DavidCBryant 14:03, 21 August 2007 (UTC)