Scale Invariance and Beyond
Dubrulle, B. / Sornette, D. / Graner, F.
This book is an excellent introduction to the concept of scale invariance, which is a growing field of research with wide applications. It describes where and how symmetry under scale transformation (and its various forms of partial breakdown) can be used to analyze solutions of a problem without the need to explicitly solve it. The first part gives descriptions of tools and concepts, the second is devoted to recent attempts to go beyond the i...