List questions from spheres

Published on 27 Mar 2026 - 13:25

354

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Is a formula for the number of Lyndon words of a fixed length over a given number of generators known?

Published on 26 Mar 2026 - 13:04

309

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Parallelepiped size with sphere inscribed

Published on 30 Nov 2019 - 17:56

241

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Explanation of Surface Integral problem

Published on 30 Nov 2019 - 19:58

170

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How to calculate area of these overlapping rings?

Published on 26 Mar 2026 - 17:35

246

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$S^2$ without $n$ points is homeomorphic to $S^2$ without $m$ points if and only if $n = m$

Published on 09 Dec 2019 - 22:29

2.8k

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Sphere inside of a Sphere

Published on 09 Dec 2019 - 23:10

415

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Why surface of sphere does not have global coordinate system?

Published on 16 Dec 2019 - 4:28

80

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Proof that every Rhumb line on a Sphere in $R^3$ is a straight line after the Mercator projection

Published on 19 Dec 2019 - 12:04

438

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Maximum number of non-overlapping spheres covering a sphere?

Published on 25 Mar 2026 - 19:04

1.4k

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the angle between two great circles on the sphere

Published on 26 Mar 2026 - 17:35

112

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Does the shape of a tangerine (a sphere pinched at the poles) have a name?

Published on 26 Mar 2026 - 21:10

28

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Area identical portions of a sphere

Published on 23 Dec 2019 - 12:36

516

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For spherical triangle $\triangle ABC$, show that $\pi<A+B+C<3 \pi$.

Published on 25 Mar 2026 - 11:01

42

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Is it possible to make this map differentiable?

Published on 26 Dec 2019 - 21:06

List Question

Problems with calculation of Gaussian curvature of $S^{2}.$

Is a formula for the number of Lyndon words of a fixed length over a given number of generators known?

Parallelepiped size with sphere inscribed

Explanation of Surface Integral problem

How to calculate area of these overlapping rings?

$S^2$ without $n$ points is homeomorphic to $S^2$ without $m$ points if and only if $n = m$

Sphere inside of a Sphere

Why surface of sphere does not have global coordinate system?

Proof that every Rhumb line on a Sphere in $R^3$ is a straight line after the Mercator projection

Maximum number of non-overlapping spheres covering a sphere?

the angle between two great circles on the sphere

Does the shape of a tangerine (a sphere pinched at the poles) have a name?

Area identical portions of a sphere

For spherical triangle $\triangle ABC$, show that $\pi<A+B+C<3 \pi$.

Is it possible to make this map differentiable?

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