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 Noncommutative probability I: motivations and examples
 A simple proof of the GaussBonnet theorem for geodesic ball
 Least squares in a nonordinary sense
 Archimedes’ principle for hyperbolic plane
 Archimedes and the area of sphere
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 Hopf fibration double covers circle bundle of sphere
 Euler’s formula e^ix = cos x + i sin x: a geometric approach
 An inequality for functions on the plane
 Weighted isoperimetric inequalities in warped product manifolds
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Top Posts
 Surjectivity of Gauss map and its degree
 AMGMHM Inequality: A Statistical Point of View
 Hopf fibration double covers circle bundle of sphere
 Complex analysis  Problem solving strategies.
 Fourier coefficients as eigenvalues/spectrum
 Sobolev and Isoperimetric Inequality
 Euler's formula e^ix = cos x + i sin x: a geometric approach
 Why does a mirror reverse left and right, but not top and bottom?
 Cosine law for tetrahedron
 A note on Obata's theorem
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