Riemannian manifold
type: Concept
preferred label: خمینه ریمانی @fa
related: quasi-Riemannian manifold

quasi-Riemannian manifold
type: Concept
broader: manifold
preferred label: خمینه شبه‌ریمانی @fa
related: Lorentzian manifold
related: Riemannian manifold

Lorentzian manifold
type: Concept
preferred label: خمینه لورنتس @fa
related: quasi-Riemannian manifold

manifold
type: Concept
narrower: quasi-Riemannian manifold
preferred label: خمینه @fa