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

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

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

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