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3 votes

Meaning of Gauss curvature of a surface in general 3-manifold

I no longer have shelves full of texts to check, but I believe most people use the term Gaussian curvature to refer to the intrinsic curvature, not to the determinant of the shape operator (some might ...
Ted Shifrin's user avatar
1 vote

Is there a term for a number system where the digits can have any value you want?

It's called a non-standard positional numeral system.
Dan's user avatar
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