pseudospherical surface
1Bäcklund transform — In mathematics, Bäcklund transforms or Bäcklund transformations relate partial differential equations and their solutions. They are an important tool in soliton theory and integrable systems. A Bäcklund transform is typically a system of first… …
2Sine-Gordon equation — The sine Gordon equation is a nonlinear hyperbolic partial differential equation in 1+1 dimensions involving the d Alembert operator and the sine of the unknown function. It was originally considered in the nineteenth century in the course of… …
3pseudosphere — pseudospherical /sooh deuh sfer i keuhl, sfear /, adj. /sooh deuh sfear /, n. Geom. a surface generated by revolving a tractrix about its asymptote. [1885 90; PSEUDO + SPHERE] * * * …
4clay mineral — any of a group of hydrous aluminum silicate minerals, as kaolinite, illite, and montmorillonite, that constitute the major portion of most clays. [1945 50] * * * Any of a group of important hydrous aluminum silicates with a layered structure and… …
5List of surfaces — This is a list of surfaces, by Wikipedia page. See also list of curves, Riemann surface. Minimal surfaces* Costa surface * Catenoid * Riemann s surface * Saddle tower * Gyroid * Catalan surface * Enneper surface =Non orientable surfaces= *Klein… …
6pseudosphere — ˈsüdō+ˌ noun Etymology: International Scientific Vocabulary pseud + sphere: probably originally formed as Italian pseudosfera : a surface of constant negative curvature (as generated by the revolution of a tractrix about its axis) * * *… …
7pseudosphere — noun A surface generated by rotating a tractrix about its asymptote See Also: pseudospherical …
