What is a black hole? ... Its author, Dr. Erik Curiel of the Munich Center for Mathematical Philosophy at Ludwig-Maximilians-Universitaet, summarizes the problem as follows: ...

Mathematics has a history of big contributions in the realm of black holes. In 1916, Karl Schwarzschild published a solution to Einstein’s equations for general relativity near a single ...

The number of these holes — one for each dimension — became known as the Betti numbers of the object in honor of Enrico Betti, a friend of Riemann’s who had attempted similar work. The modern ...