Reviewers often describe it as a "modern version of Wigner’s classic" work on quantum mechanics. It remains highly relevant because it is nearly self-contained, with technical mathematical details relegated to comprehensive appendices to keep the main narrative fluid. Google Books Purchasing and Resources
Tung occupies a sweet spot. For example, his treatment of the Lorentz group (Chapter 10) is still cited in research papers on relativistic wave equations. His derivation of the Clebsch-Gordan series for SU(3) (Chapter 7) is the clearest in print. And page 79’s careful discussion of double covers reappears in modern particle physics when explaining ( \theta)-terms in QCD or spin-statistics. Group Theory In Physics Wu-ki Tung Pdf 79 Extra Quality
The 2-to-1 homomorphism from SU(2) to SO(3) and the emergence of half-integer angular momentum in quantum mechanics. Reviewers often describe it as a "modern version