Hyperkähler Manifold: Differential Geometry, Riemannian Manifold, Holonomy Group

Calibrated Geometry: Mathematics, Differential Geometry, Riemannian Manifold

Quaternion Kähler Manifold: Differential Geometry, Holonomy, Scalar Curvature

Isothermal Coordinates: Mathematics, Differential Geometry, Riemannian Manifold

Sasakian Manifold: Differential Geometry, Contact Manifold, Riemannian Metric, Kähler String Theory