= Cotangent space
{wiki=Cotangent_space}
Cotangent space is a concept from differential geometry and differential topology. It is closely related to the notion of tangent space, which is used to analyze the local properties of smooth manifolds. 1. **Tangent Space**: The tangent space at a point on a manifold consists of the tangent vectors that can be considered as equivalence classes of curves passing through that point, or more abstractly, as derivations acting on smooth functions defined near that point.
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