O'Neill tensors are mathematical objects used in Riemannian geometry that help to describe the curvature and geometric properties of submanifolds within a Riemannian manifold. They are crucial for understanding the relationships between the ambient space and the submanifolds, as they provide essential tools for measuring how these surfaces bend and interact with their surrounding spaces.
congrats on reading the definition of O'Neill Tensors. now let's actually learn it.