A biography with reference to contemporaries, and a list of references.

Although he died before the development of general relativity, his work in non-Euclidean geometries is very important to studying a curved spacetime.

The mathematician who developed much of tensor calculus before Einstein found a use for it.

Brief biography.

A brief biography with quotations and a bibliography.

One of the first people to combine general relativity with the laws of electromagnetism

A brief biography with reference to contemporary mathematicians and theories.

The man who solved Einstein's equations and predicted the existence of black holes

A mathematician who developed many theorems regarding Riemannian geometry

A brief biography on Marcel Grossmann, a classmate of Einstein who was the first to find a connection between tensor calculus and the theory of relativity.

Mathematician who studied solution to general relativity and developed DeSitter space