English Spherical conic Cited by user Jacobolus on 04 Nov 2022 In mathematics, a spherical conic or sphero-conic is a curve on the sphere, the intersection of the sphere with a concentric elliptic cone.
English Valery Vasilevich Kozlov Cited by user Suslindisambiguator on 09 Jun 2021 Valery Vasilevich Kozlov (Валерий Васильевич Козлов, born 1 January 1950 in Ryazan Oblast) is a Russian mathematician and mathematical physicist.