Covering both theory and applications, this important work provides a
comprehensive introduction to the modern theory of X-ray and electronic
spectra of free atoms. Romas Karazija discusses methods of angular
momenta, irreducible tensorial operators, and coefficients of fractional
parentage and their use in determining cross sections and probabilities
of elementary processes. In addition, Karazija addresses the structure
of electronic shells with inner vacancies and many-body effects.