Differing from many mathematics texts, this one emphasizes the mathematical concepts underlying manifold physical phenomena. Readers get both the knowledge required in applications, and also the minimum "mathematical skills" necessary in the study of physics.
Tsuneyoshi Nakayama
graduated from Hokkaido University in Japan in 1973. He is a professor of Theoretical Condensed Matter Physics in Department of Applied Physics in Hokkaido University from 1986. During this period he stayed Max-Planck Institute, University of Monpellier, University of Cambridge, and The University of Tokyo. He is the co-author of the book "Fractal concepts of condensed matter."
Hiroyuki Shima
obtained Ph.D from Hokkaido University. He is currently pursuing his studies, with a special interest in critical phenomena in disordered systems and many-body problems in complex systems. He has had a considerable amount of experience in teaching mathematics and physics to undergraduate and graduate students.