Hostname: page-component-78c5997874-8bhkd Total loading time: 0 Render date: 2024-11-19T12:47:05.378Z Has data issue: false hasContentIssue false

Symmetrized Kronecker Products of Group Representations

Published online by Cambridge University Press:  20 November 2018

P. H. Butler
Affiliation:
University of Canterbury, Christchurch, New Zealand
R. C. King
Affiliation:
The University, Southampton, England
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Certain phases are associated with the Kronecker squares and cubes of representations of the finite and of the compact semi-simple groups. These phases are important in giving the symmetry properties of the 1 — jm and 3 — jm symbols of the groups [4; 9]. It is our primary purpose to evaluate these phases.

The Frobenius-Schur invariant [12, p. 142] for an irreducible representation of group G

(1.1)

Type
Research Article
Copyright
Copyright © Canadian Mathematical Society 1974

References

1. Abramsky, J. and King, R. C., Formation and decay of negative-parity baryon resonances in a broken U6,6 model, Nuovo Cimento A 67 (1970), 153216.Google Scholar
2. Biedenharn, L. C., Brouwer, W., and Sharp, W. T., The algebra of representations of some finite groups (Rice Univ. Studies, Vol. 54, No. 2, 1968).Google Scholar
3. Bose, A. K. and Patera, J., Classification of finite-dimensional irreducible representations of connected complex semi-simple Lie groups, J. Mathematical Phys. 11 (1970), 22312234.Google Scholar
4. Butler, P. H., Wigner coefficients and n — j symbols for chains of groups (to appear).Google Scholar
5. Butler, P. H. and King, R. C., The symmetric group: characters, products and plethysms, J. Mathematical Phys. 14 (1973), 11761183.Google Scholar
6. Derome, J-R., Symmetry properties of the 3j-symbols for an arbitrary group, J. Mathematical Phys. 7 (1966), 612615.Google Scholar
7. Derome, J-R., Symmetry properties of Sj-symbols for SU ‘(3), J. Mathematical Phys. 8 (1967), 714716.Google Scholar
8. Derome, J-R. and Jabimow, G., Propriétés de symétrie des symboles à 3j de SU(n), Can. J. Phys. 48 (1970), 21692175.Google Scholar
9. Derome, J-R. and Sharp, W. T., Racah algebra for an arbitrary group, J. Mathematical Phys. 6 (1965), 15841590.Google Scholar
10. Dynkin, E. B., The maximal subgroups of the classical groups, Amer. Math. Soc. Transi. Ser. 26 (1957), 245378.Google Scholar
11. Frame, J. S., private communication, June 1972.Google Scholar
12. Hamermesh, M., Group theory and its application to physical problems (Addison-Wesley Pub. Co., Reading, Mass., 1962).Google Scholar
13. King, R. C., Generalised Young tableaux and the general linear group, J. Mathematical Phys. 11 (1970), 280294.Google Scholar
14. King, R. C., Modification rules and products of irreducible representations of the unitary, orthogonal and symplectic groups, J. Mathematical Phys. 12 (1971), 15881598.Google Scholar
15. King, R. C., Branching rules for GL(N)Σm and the evaluation of inner plethysms, J. Mathematical Phys. (to appear).Google Scholar
16. Littlewood, D. E., Modular representations of symmetric groups, Proc. Roy. Soc. London Ser. A209 (1951), 333352.Google Scholar
17. Littlewood, D. E., Products and plethysms of characters with orthogonal, symplectic and symmetric groups, Can. J. Math. 10 (1958), 1732.Google Scholar
18. Littlewood, D. E., The theory of group characters, 2nd edition (Oxford University Press, Oxford, 1950).Google Scholar
19. Mal'cev, A. I., On semi-simple subgroups of Lie groups, Amer. Math. Soc. Transi. Ser. 1 9 (1962), 172213.Google Scholar
20. Plunkett, S. P. O., On the plethysm of S-functions, Can. J. Math. 24 (1972), 541552.Google Scholar
21. Robinson, G. de B., Representation theory of the symmetric group (University of Toronto, Toronto, 1961).Google Scholar
22. Wybourne, B. G., Symmetry principles and atomic spectroscopy (with an appendix of tables by P. H. Butler) (J. Wiley and Sons, New York, 1970).Google Scholar
23. van Zanten, A. J. and de Vries, E., On the number of roots of the equation Xn = E in finite groups and related properties, J. Algebra 25 (1973), 475486.Google Scholar