As first discovered by Choptuik, the black hole threshold in the space of initial data for
general relativity shows both surprising structure and surprising simplicity. Universality …

In general relativity black holes can be formed from regular initial data that do not contain a
black hole already. The space of regular initial data for general relativity therefore splits …

We establish an exact connection between the Choptuik scaling parameter for the three-
dimensional Bañados-Teitelboim-Zanelli black hole, and the imaginary part of the …

A bstract Conical defects of the form (AdS 3×\({\mathbbm {S}}^ 3\))/ℤ k have an exact orbifold
description in worldsheet string theory, which we derive from their known presentation as …

This paper looks at the ways in which popular science books, through their explicit insertion
of science into the public domain, act to reinforce a distinct demarcation between scientists …

We present results of numerical simulations of the formation of black holes from the
gravitational collapse of a massless, minimally coupled scalar field in 2+ 1 dimensional …

A bstract Motivated by its field theory interpretation, we study gravitational collapse of a
minimally coupled massless scalar field in Einstein gravity with a negative cosmological …

In this review, we summarize exact results for the three-dimensional BTZ black hole. We use
rigorous mathematical results to clarify the general structure and properties of this black hole …

We describe the results of a numerical calculation of circularly symmetric scalar field
collapse in three spacetime dimensions with a negative cosmological constant. The …

The standard model of modern cosmology, which is based on the Friedmann–Lemaıtre–
Robertson–Walker metric, allows the definition of an absolute time. However, there exist …