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

Mathematician who studied solution to general relativity and developed DeSitter space

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

A brief biography with quotations and a bibliography.

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

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.