Riemannian

Riemannian most often refers to Bernhard Riemann:


 * Riemannian geometry
 * Riemannian manifold
 * Pseudo-Riemannian manifold
 * Sub-Riemannian manifold
 * Riemannian submanifold
 * Riemannian metric
 * Riemannian circle
 * Riemannian submersion
 * Riemannian Penrose inequality
 * Riemannian holonomy
 * Riemann curvature tensor
 * Riemannian connection
 * Riemannian connection on a surface
 * Riemannian symmetric space
 * Riemannian volume form
 * Riemannian bundle metric
 * List of topics named after Bernhard Riemann

but may also refer to Hugo Riemann:
 * Neo-Riemannian theory (music)