This proceedings contains the talks delivered at plenary and parallel sessions by leading researchers in both classical and quantum general relativity and in astrophysics.

This volume contains up-to-date accounts of many of the latest developments in gravitation, cosmology and astrophysics, including papers on black hole radiation, empirical tests of gravitational theory, quantum gravity, classical and quantum cosmology, singularities, computational methods, and a number of other topics. The keynote speakers include S Carlip, M Haugan, A Linde, D Page, G Papini, K Schleich, P Szekeres, G Starkman and J York.

This volume is the refereed proceedings of the Sixth Canadian Conference on General Relativity and Relativistic Astrophysics held in May 1995 at the University of New Brunswick. The book includes invited talks and contributed talks and posters including state-of-the art reviews of many of the most recent important developments in gravitational physics. This book would serve as a good supplement to standard texts on the topic. Features: * Review articles in key areas: black holes, numerical relativity, etc. * Contributions covering most of gravitational physics * Useful articles for students who wish to begin exploring the issues discusses * Invited talks given by researchers known for their ability to communicate their expertise

General Relativity and Gravitation 1992 contains the best of 700 papers presented at the tri-annual INT conference, generally recognized as the key conference in the area. The plenary and invited papers are published in full, along with summaries of parallel symposia and workshops. The list of plenary speakers is as impressive as ever, with contributions from Jim Hartle, Roger Penrose, and Lee Smolin among many others.

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.

Quantum gravity is the name given to a theory that unites general relativity - Einstein's theory of gravitation and spacetime - with quantum field theory, our framework for describing non-gravitational forces. The Structural Foundations of Quantum Gravity brings together philosophers and physicists to discuss a range of conceptual issues that surface in the effort to unite these theories, focusing in particular on the ontological nature of the spacetime that results. Although there has been a great deal written about quantum gravity from the perspective of physicists and mathematicians, very little attention has been paid to the philosophical aspects. This volume closes that gap, with essays written by some of the leading researchers in the field. Individual papers defend or attack a structuralist perspective on the fundamental ontologies of our physical theories, which offers the possibility of shedding new light on a number of foundational problems. It is a book that will be of interest not only to physicists and philosophers of physics but to anyone concerned with foundational issues and curious to explore new directions in our understanding of spacetime and quantum physics.

We say that the processes going on in the world about us are asymmetric in time or display an arrow of time. Yet this manifest fact of our experience is particularly difficult to explain in terms of the fundamental laws of physics. This volume reconciles these profoundly conflicting facts.

These nine essays, commissioned on the initiative of the Philosophy section of the British Academy, address fundamental questions about time in philosophy, physics, linguistics, and psychology. Are there facts about the future? Could we affect the past? In physics, general relativity and quantum theory give contradictory treatments of time. So in the current search for a theory of quantum gravity, which should give way: general relativity or quantum theory? In linguistics and psychology, how does our language represent time, and how do our minds keep track of it?

Thanks to Einstein's relativity theories, our notions of space and time underwent profound revisions about a 100 years ago. The resulting interplay between geometry and physics has dominated all of fundamental physics since then. This volume contains contributions from leading researchers, worldwide, who have thought deeply about the nature and consequences of this interplay. The articles take a long-range view of the subject and distill the most important advances in broad terms, making them easily accessible to non-specialists. The first part is devoted to a summary of how relativity theories were born (J Stachel). The second part discusses the most dramatic ramifications of general relativity, such as black holes (P Chrusciel and R Price), space-time singularities (H Nicolai and A Rendall), gravitational waves (P Laguna and P Saulson), the large scale structure of the cosmos (T Padmanabhan); experimental status of this theory (C Will) as well as its practical application to the GPS system (N Ashby). The last part looks beyond Einstein and provides glimpses into what is in store for us in the 21st century. Contributions here include summaries of radical changes in the notions of space and time that are emerging from quantum field theory in curved space-times (Ford), string theory (T Banks), loop quantum gravity (A Ashtekar), quantum cosmology (M Bojowald), discrete approaches (Dowker, Gambini and Pullin) and twistor theory (R Penrose).

The imposing scope and penetrating insights of German philosopher Nicolai Hartmann’s work have received renewed interest in recent years. The Neo-Kantian turned ontological realist established a philosophical approach unique among his peers, and it provides a wealth of resources for considering contemporary philosophical problems. The chapters included in this volume examine his ethics, ontology, aesthetics, philosophy of mind, and philosophy of nature. They explore his ontology of values, autonomy and human enhancement, and law; his theory of levels of reality, space-time and geometry, the categories of temporality, causality, and “life,” the question of realism, and social ontology. Others take inspiration from his aesthetic theory, ideas about education, and his embrace of the Socratic pathos of wonder. They bring his philosophy into conversation with that of his contemporaries, including Roman Ingarden and Konrad Lorenz’s appropriation of Hartmann, as well as with the history of philosophy, including Plato’s theory of recollection, pre-Socratic philosophy, and that of his Russian teacher Nikolai Lossky. Those familiar with Hartmann’s wide-ranging systematic philosophy will benefit from these new engagements with his work, and those new to it will find them relevant to a number of current philosophical debates.