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Results tagged with surfaces
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user 21193
A surface is a two-dimensional topological manifold. The term can also be used to describe a smooth surface, depending on the context.
7
votes
Geodesics on the twisted pseudosphere (Dini's surface)
Since Joseph asked for pictures, I will add to Robert's excellent response with the following images. I will stick to Robert’s notation (which includes the unconventional choice of using the $y$-axis …
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