Complex sentence: The Nash embedding theorems (or imbedding theorems), also called Fundamental Theorem of Riemannian geometry, two theorems published in 1954 and 1956 by John Nash, states that every Riemannian manifold can be isometrically embedded in a Euclidean space R "n".
Split into simpler sentences: The Nash embedding theorems (or imbedding theorems), also called Fundamental Theorem of Riemannian geometry, are two theorems published in 1954 and 1956 by John Nash. They state that every Riemannian manifold can be isometrically embedded in a Euclidean space R "n".