Roberto Percacci's Books

An Introduction To Covariant Quantum Gravity And Asymptotic Safety

By: Roberto Percacci

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An Introduction To Covariant Quantum Gravity And Asymptotic Safety

By: Roberto Percacci

This book covers recent developments in the covariant formulation of quantum gravity. Developed in the 1960s by Feynman and DeWitt, by the 1980s this approach seemed to lead nowhere due to perturbative non-renormalizability. The possibility of non-perturbative renormalizability or 'asymptotic safety', originally suggested by Weinberg but largely ignored for two decades, was revived towards the end of the century by technical progress in the field of the renormalization group. It is now a very active field of research, providing an alternative to other approaches to quantum gravity.Written by one of the early contributors to this subject, this book provides a gentle introduction to the relevant ideas and calculational techniques. Several explicit calculations gradually bring the reader close to the current frontier of research. The main difficulties and present lines of development are also outlined.

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Page Count

313

Publisher

World Scientific

Published Date

ISBN 10

9813207191

ISBN 13

9789813207196

Geometry of Nonlinear Field Theories

By: Roberto Percacci

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Geometry of Nonlinear Field Theories

By: Roberto Percacci

This book discusses the deep connection between gravitation and the nonlinear sigma model coupled to gauge fields in a new perspective. Interesting developments emerge. Some other new aspects are provided such as the constant use of infinite dimensional differential geometry, a powerful tool not only for making the theory more rigorous but also for a heuristic understanding of field theory. A systematic treatment of the topological properties of Yang-Mills theory, the nonlinear sigma model and gravity is also given. Being sufficiently pedagogical and self-contained, this book could also be used as a base for an interdisciplinary course at the graduate level.

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Page Count

255

Publisher

World Scientific Publishing Company Incorporated

Published Date

ISBN 10

9971500795

ISBN 13

9789971500795

An Introduction To Covariant Quantum Gravity And Asymptotic Safety

By: Roberto Percacci

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An Introduction To Covariant Quantum Gravity And Asymptotic Safety

By: Roberto Percacci

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Page Count

313

Publisher

World Scientific

Published Date

ISBN 10

9813207191

ISBN 13

9789813207196

Beauty and the Inferno

By: Roberto Saviano

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Beauty and the Inferno

By: Roberto Saviano

Roberto Saviano is best known for his work on the Italian mafia, but Beauty and the Inferno also tackles universal themes with great insight and humanity, with urgency, and often with anger. This important collection includes essays on the legacy of the earthquake at L'Aquila, a town at risk of becoming overrun by mafia; on boxing as an escape route; on the life of the legendary South African jazz singer, Miriam Makeba; on an encounter with Salman Rushdie, and a tribute to Frank Miller, author of the graphic novel 300; on Michael Herr's Dispatches. One essay reflects on the aftermath of the publication of his book and subsequent film, Gomorrah, and how his life has been conditioned by the mafia's death threats, and the final essay in the collection celebrates the life of the Russian journalist Anna Politkovskaya.

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Page Count

280

Publisher

MacLehose Press

Published Date

ISBN 10

0857050095

ISBN 13

9780857050090

Book's by Roberto Percacci

An Introduction To Covariant Quantum Gravity And Asymptotic Safety

An Introduction To Covariant Quantum Gravity And Asymptotic Safety

Geometry of Nonlinear Field Theories

Geometry of Nonlinear Field Theories

An Introduction To Covariant Quantum Gravity And Asymptotic Safety

An Introduction To Covariant Quantum Gravity And Asymptotic Safety

Beauty and the Inferno

Beauty and the Inferno

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