By Professor Dr. Teturo Inui, Professor Dr. Yukito Tanabe, Professor Dr. Yositaka Onodera (auth.)
This publication has been written to introduce readers to crew conception and its ap plications in atomic physics, molecular physics, and solid-state physics. the 1st jap version was once released in 1976. the current English edi tion has been translated by way of the authors from the revised and enlarged variation of 1980. In translation, moderate transformations were made in. Chaps. eight and 14 to replace and condense the contents, including a few minor additions and enhancements through the quantity. The authors cordially thank Professor J. L. Birman and Professor M. motor vehicle dona, who inspired them to arrange the English translation. Tokyo, January 1990 T. Inui . Y. Tanabe Y. Onodera Preface to the japanese variation because the identify indicates, this booklet has been ready as a textbook to introduce readers to the functions of crew concept in numerous fields of physics. crew thought is, in a nutshell, the math of symmetry. It has 3 major parts of software in sleek physics. the 1st originates from early reviews of crystal morphology and constitutes a framework for classical crystal physics. The research of the symmetry of tensors representing macroscopic actual houses (such as elastic constants) belongs to this class. The sec ond region used to be enunciated by means of E. Wigner (1926) as a robust technique of dealing with quantum-mechanical difficulties and was once first utilized during this experience to the research of atomic spectra. quickly, H.