This volume covers topics ranging from the early universe, cosmology, inflation, quantum gravity, exact solutions and computer-aided computations to space and terrestrial gravity experiments, with special emphasis on recent research.

The 16th conference of the International Society on General Relativity and Gravitation (GR16), held at the International Convention Centre in Durban, South Africa, from 15 to 21 July, was attended by 450 delegates from around the world. The scientific programme comprised 18 plenary lectures, 1 public lecture and 19 workshops which, excepting 3 plenary lectures, are presented in this proceedings. It was the first major international conference on general relativity and gravitation held on the African continent. Contents:Simplicial Euclidean and Lorentzian Quantum Gravity (J Ambjorn)An Overview of Gravitational-Wave Sources (C Cutler & K Thorne)Gravitating Lumps (D Gal'tsov)Strings, Gravity and Particle Physics (J Maldacena)The Lighter Side of Gravity (J Narlikar)Exact Solutions and Their Interpretation (J Bicák)Approximation Methods (C Will)Physics of the Early Universe (K-I Maeda)Mathematical Cosmology (P Dunsby)Tests of Special and General Relativity (A Beesham)Quantum Field Theory in Curved Spacetime (L Ford)and other papers Readership: Researchers and research students in general relativity, relativistic astrophysics, cosmology, experimental gravity and quantum gravity. Keywords:General Relativity;Gravitation;Cosmology;Astrophysics;Quantum Gravity;Gravitational Wave Detection;Experimental Relativity

This volume contains the proceedings of the twelfth triannual International Conference on General Relativity and Gravitation, the premier conference for presentation and discussion of new ideas in relativity and cosmology. The volume will contain the invited talks as well as short reports on the parallel workshops that took place at the meeting. It will be essential reading for all research workers in relativity, cosmology and astrophysics.

The Tenth International Conference on General Relativity and Gravitation (GR10) was held from July 3 to July 8, 1983, in Padova, Italy. These Conferences take place every three years, under the auspices of the International Society on General Relativity and Gravitation, with the purpose of assessing the current research in the field, critically discussing the prog ress made and disclosing the points of paramount im portance which deserve further investigations. The Conference was attended by about 750 scientists active in the various subfields in which the current research on gravitation and general relativity is ar ticulated, and more than 450 communications were sub mitted. In order to fully exploit this great occur rence of experience and creative capacity, and to pro mote individual contributions to the collective know ledge, the Conference was given a structure of work shops on the most active topics and of general sessions in which the Conference was addressed by invited speakers on general reviews or recent major advance ments of the field. The individual communications were collected in a two-volume publication made available to the participants upon their arrival and widely distributed to Scientific Institutions and Research Centres.

This volume contains the proceedings of the twelfth triannual International Conference on General Relativity and Gravitation, the premier conference for presentation and discussion of new ideas in relativity and cosmology. The volume will contain the invited talks as well as short reports on the parallel workshops that took place at the meeting. It will be essential reading for all research workers in relativity, cosmology and astrophysics.