Skip to content

Riemannian Metric

Graduate+

Definition

Structure assigning inner product on tangent vectors at each point

Formulas

g: Tₚ M × Tₚ M → ℝ
ds² = g_ij dxⁱ dx^j
Length: L(γ) = ∫√(g_ij γ̇ⁱ γ̇^j) dt

Examples

Example 1

Euclidean metric: g_{ij} = δ_{ij}

Example 2

Sphere metric: ds² = dθ² + sin²θ dφ²

Applications

General relativity

Geodesics

Curvature

Related Documents

Was this page helpful?