Charles Hellaby

Who is Charles Hellaby?

Dr Charles Hellaby is a lecturer at the University of Cape Town, South Africa. He is a member of the Baha'i Faith. His research interests include:

Inhomogeneous cosmology. Standard cosmology assumes a smooth homogeneous universe, but the real universe is very lumpy

Inhomogeneous cosmological models - their evolution, geometry and singularities

Non-linear structure formation in the universe

Extracting the geometry of the cosmos from observations

The Lemaitre–Tolman cosmological model

The Szekeres cosmological model

Junction conditions in GR

Dense black holes

Local inhomogeneities and the Swiss cheese model

He has also worked on

The models of Vaidya, Schwarzschild–Kruskal–Szekeres & Kinnersley

Classical signature change

Cosmic strings

Gravitational collapse