Abstract
A large amount of work in physics deals with the calculation of matrix elements and the solution of eigenvalue problems, either exactly or by perturbation methods. The basic ideas of using group theory in simplifying such problems (Wigner-Eckart theorem) will be given in this chapter.
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© 1988 Springer-Verlag Berlin Heidelberg
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Ludwig, W., Falter, C. (1988). Tensor Operators and Expectation Values. In: Symmetries in Physics. Springer Series in Solid-State Sciences, vol 64. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-97029-0_6
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DOI: https://doi.org/10.1007/978-3-642-97029-0_6
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-97031-3
Online ISBN: 978-3-642-97029-0
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