黎曼空间 límànkōngjiān Riemannian space Definitions Defs Origin Strokes Stroke Words Sentences Sents 黎曼 límàn Riemann Bernhard Riemann (1826-1866), a famous German mathematician and geometer空间 空間 kōngjiān mathematical space a set of elements or points satisfying specified geometric or algebraic conditions, such as vector or metric spaces