Charles W. Hellaby
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Dr Charles Hellaby is a lecturer at the University of Cape Town, South Africa. 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
