• Thumbnail for Eugenio Beltrami
    Eugenio Beltrami (16 November 1835 – 18 February 1900) was an Italian mathematician notable for his work concerning differential geometry and mathematical...
    10 KB (1,092 words) - 16:00, 31 August 2023
  • pseudo-Riemannian manifolds. It is named after Pierre-Simon Laplace and Eugenio Beltrami. For any twice-differentiable real-valued function f defined on Euclidean...
    20 KB (3,336 words) - 19:52, 26 October 2023
  • Thumbnail for Beltrami–Klein model
    endpoints on the boundary sphere. The Beltrami–Klein model is named after the Italian geometer Eugenio Beltrami and the German Felix Klein while "Cayley"...
    21 KB (2,709 words) - 22:18, 14 January 2024
  • The Beltrami identity, named after Eugenio Beltrami, is a special case of the Euler–Lagrange equation in the calculus of variations. The Euler–Lagrange...
    6 KB (968 words) - 15:17, 18 March 2024
  • which is a surface of curvature 1/R2. The term was introduced by Eugenio Beltrami in his 1868 paper on models of hyperbolic geometry. The same surface...
    11 KB (1,125 words) - 18:09, 24 April 2024
  • can have chaotic trajectories. It is named after Vladimir Arnold, Eugenio Beltrami, and Stephen Childress. Ippolit S. Gromeka's (1881) name has been historically...
    3 KB (357 words) - 21:52, 22 October 2022
  • Thumbnail for Poincaré disk model
    Klein model and the Poincaré half-space model, it was proposed by Eugenio Beltrami who used these models to show that hyperbolic geometry was equiconsistent...
    26 KB (3,970 words) - 23:55, 1 March 2024
  • In other words, Beltrami flow is a flow in which the Lamb vector is zero. It is named after the Italian mathematician Eugenio Beltrami due to his derivation...
    11 KB (1,954 words) - 17:40, 27 March 2024
  • Thumbnail for Tractrix
    surface of revolution about its asymptote: the pseudosphere. Studied by Eugenio Beltrami in 1868, as a surface of constant negative Gaussian curvature, the...
    12 KB (1,437 words) - 23:34, 5 April 2024
  • In mathematics, the Beltrami equation, named after Eugenio Beltrami, is the partial differential equation ∂ w ∂ z ¯ = μ ∂ w ∂ z . {\displaystyle {\partial...
    61 KB (10,901 words) - 00:14, 30 January 2024