Taut submanifold

A **taut submanifold** is a concept from differential geometry and relates to certain properties of submanifolds within a larger manifold, particularly in the context of Riemannian geometry and symplectic geometry. In general, a submanifold \( M \) of a manifold \( N \) is said to be **taut** if it can be defined as the zero locus of a smooth section of a certain bundle over \( N \).