• In geometry, a pseudosphere is a surface with constant negative Gaussian curvature. A pseudosphere of radius R is a surface in R 3 {\displaystyle \mathbb...
    11 KB (1,125 words) - 05:28, 24 May 2024
  • Thumbnail for Eugenio Beltrami
    non-Euclidean geometry by modeling it on a surface of constant curvature, the pseudosphere, and in the interior of an n-dimensional unit sphere, the so-called Beltrami–Klein...
    10 KB (1,092 words) - 16:00, 31 August 2023
  • opposite each other are identified (considered to be the same). The pseudosphere has the appropriate curvature to model hyperbolic geometry. The simplest...
    44 KB (6,018 words) - 09:27, 4 August 2024
  • Thumbnail for Tractrix
    asymptote: the pseudosphere. Studied by Eugenio Beltrami in 1868, as a surface of constant negative Gaussian curvature, the pseudosphere is a local model...
    12 KB (1,462 words) - 23:34, 5 April 2024
  • Thumbnail for Gaussian curvature
    surfaces of class C2 immersed in R3, but breaks down for C1-surfaces. The pseudosphere has constant negative Gaussian curvature except at its boundary circle...
    19 KB (2,612 words) - 22:21, 7 August 2024
  • sheets Hyperbolic paraboloid (a ruled surface) Paraboloid Dini's surface Pseudosphere Cayley cubic Barth sextic Clebsch cubic Monkey saddle (saddle-like surface...
    2 KB (169 words) - 08:26, 29 April 2024
  • examples of generalized pseudospheres. There is a correspondence between embedded surfaces of constant curvature -1, known as pseudospheres, and solutions to...
    5 KB (739 words) - 04:59, 23 November 2022
  • Thumbnail for Nuclear fission
    uranium metal from the Ames process, meant the replacement of oxide pseudospheres with Frank Spedding's "eggs". Starting on 16 November 1942, Fermi had...
    73 KB (9,616 words) - 07:51, 20 July 2024
  • Thumbnail for Dini's surface
    surface with constant negative curvature that can be created by twisting a pseudosphere. It is named after Ulisse Dini and described by the following parametric...
    2 KB (173 words) - 01:53, 29 January 2023
  • Thumbnail for Sphere
    that lacks a boundary with constant, positive Gaussian curvature. The pseudosphere is an example of a surface with constant negative Gaussian curvature...
    41 KB (5,318 words) - 04:37, 13 August 2024