Hierarchical and Geometrical Methods in Scientific Visualization

The nature of the physical Universe has been increasingly better understood in recent years, and cosmological concepts have undergone a rapid evolution (see, e.g., [11], [2],or [5]). Although there are alternate theories, it is generally believed that the large-scale relationships and homogeneities that we see can only be explainedby having the universe expand suddenlyin a very early “inflationary” period. Subsequent evolution of the Universe is described by the Hubble expansion, the observ...