John C. Taylor

The concept of symmetric space is of central importance in many branches of mathematics. Compactifications of these spaces have been studied from the points of view of representation theory, geometry, and random walks. This work is devoted to the study of the interrelationships among these various compactifications and, in particular, focuses on the martin compactifications. It is the first exposition to treat compactifications of symmetric spaces systematically and to uniformized the various points of view. The work is largely self-contained, with comprehensive references to the literature. It is an excellent resource for both researchers and graduate students.

Paul Adrian Maurice Dirac, one of the greatest physicists of the twentieth century, died in 1984. Dirac's college, St John's of Cambridge, generously endowed annual lectures to be held at Cambridge University in his memory. This 1990 volume includes an expanded version of the third Dirac Memorial Lecture presented by Abdus Salam, in addition to two previously unpublished lectures by Paul Dirac and by Werner Heisenberg.

As physics has progressed through the ages it has succeeded in explaining more and more diverse phenomena with fewer and fewer underlying principles. This lucid and wide-ranging book explains how this understanding has developed by periodically uncovering unexpected 'hidden unities' in nature. The author deftly steers the reader on a fascinating path which goes to the heart of physics - the search and discovery of elegant laws which unify and simplify our understanding of the intricate Universe in which we live. Starting with the Ancient Greeks, the author traces the development of major concepts in physics right up to the present day. Throughout, the presentation is crisp and informative and only a minimum of mathematics is used. Any reader with a background in mathematics or physics will find this book a fascinating insight into the development of our fundamental understanding of the world, and the apparent simplicity underlying it.

As physics has progressed through the ages it has succeeded in explaining more and more diverse phenomena with fewer and fewer underlying principles. This lucid and wide-ranging book explains how this understanding has developed by periodically uncovering unexpected 'hidden unities' in nature. The author deftly steers the reader on a fascinating path which goes to the heart of physics - the search and discovery of elegant laws which unify and simplify our understanding of the intricate Universe in which we live. Starting with the Ancient Greeks, the author traces the development of major concepts in physics right up to the present day. Throughout, the presentation is crisp and informative and only a minimum of mathematics is used. Any reader with a background in mathematics or physics will find this book a fascinating insight into the development of our fundamental understanding of the world, and the apparent simplicity underlying it.

The concept of symmetric space is of central importance in many branches of mathematics. Compactifications of these spaces have been studied from the points of view of representation theory, geometry, and random walks. This work is devoted to the study of the interrelationships among these various compactifications and, in particular, focuses on the martin compactifications. It is the first exposition to treat compactifications of symmetric spaces systematically and to uniformized the various points of view. The work is largely self-contained, with comprehensive references to the literature. It is an excellent resource for both researchers and graduate students.

Paul Adrian Maurice Dirac, one of the greatest physicists of the twentieth century, died in 1984. Dirac's college, St John's of Cambridge, generously endowed annual lectures to be held at Cambridge University in his memory. This 1990 volume includes an expanded version of the third Dirac Memorial Lecture presented by Abdus Salam, in addition to two previously unpublished lectures by Paul Dirac and by Werner Heisenberg.