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Cookie akzeptierenRenormalization of Quantum Field Theories with Non-linear Field Transformations
- Springer Berlin Heidelberg
- 2014
- Taschenbuch
- 252 Seiten
- ISBN 9783662136676
The characteristic feature of many models for field theories based on concepts of differential geometry is their nonlinearity. In this book a systematic exposition of nonlinear transformations in quantum field theory is given. The book starts with a short account of the renormalization theory with examples which can be handled successfully in four space-time dimensions. The second part is devoted to nonlinear sigma-models and their constructions in two dimensions. In the final section geometrical and cohomological methods and the relations to string theory are treated. This book is an important contribution towards rigorous definitions, and the mastering of nonlinear reparametrizations in agreement with the principles of
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