List questions from noneuclidean-geometry

Published on 13 Mar 2021 - 16:50

739

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Distance for Non-Euclidean Space

Published on 27 Mar 2021 - 21:29

76

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Beltrami's Essay on the Interpretation of Non-Euclidean Geometry

Published on 18 Apr 2021 - 10:28

61

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Analogous Euler line of a hyperbolic triangle

Published on 23 Apr 2021 - 11:50

44

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Non-Euclidean Geometry: Correspondence of inversion in spherical lines and reflections in great circles under stereographic projection

Published on 25 Mar 2026 - 20:36

70

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Does non-Euclidian geometries induce euclidian geometry locally?

Published on 26 Apr 2021 - 6:45

183

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Is there a name for generalized manifolds?

Published on 27 Apr 2021 - 6:16

166

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Properties of pseudospherical circles and geodesics

Published on 04 May 2021 - 16:07

246

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Is there a conformal map that preserves the Poincaré disc and maps two points $z_1, z_2$ to different points $z_1', z_2'$?

Published on 19 May 2021 - 14:07

139

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Third vertex of equilateral SPHERICAL triangle

Published on 24 May 2021 - 11:16

174

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Non-Euclidean distance in the upper half plane between two complex numbers

Published on 08 Jun 2021 - 8:03

732

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What is the maximum "alive density" of cells in Conway's Game of Life when played on a torus?

Published on 23 Feb 2026 - 12:08

71

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What would be the tools in the compass box of a geometer living in a curved 3-dim space?

Published on 25 Jun 2021 - 19:50

266

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What is meant by "cross ratio of four points" in Weyl's discussion of the Klein Disk?

Published on 23 Feb 2026 - 8:28

74

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Visualising non-euclidean geometry

Published on 02 Jul 2021 - 1:56

List Question

Euclidean angles on curved surfaces

Distance for Non-Euclidean Space

Beltrami's Essay on the Interpretation of Non-Euclidean Geometry

Analogous Euler line of a hyperbolic triangle

Non-Euclidean Geometry: Correspondence of inversion in spherical lines and reflections in great circles under stereographic projection

Does non-Euclidian geometries induce euclidian geometry locally?

Is there a name for generalized manifolds?

Properties of pseudospherical circles and geodesics

Is there a conformal map that preserves the Poincaré disc and maps two points $z_1, z_2$ to different points $z_1', z_2'$?

Third vertex of equilateral SPHERICAL triangle

Non-Euclidean distance in the upper half plane between two complex numbers

What is the maximum "alive density" of cells in Conway's Game of Life when played on a torus?

What would be the tools in the compass box of a geometer living in a curved 3-dim space?

What is meant by "cross ratio of four points" in Weyl's discussion of the Klein Disk?

Visualising non-euclidean geometry

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