To a very large extent the previous chapters have been independent of the group or groups chosen. The only modification required to generalize the various equations to the case of an arbitrary finite or compact continuous group is the insertion of more complicated symmetries for non-simple-phase and non-quasi-ambivalent groups. Many of the results of this chapter are equally general, but we do focus our attention on a number of points which may be dismissed lightly in a general treatment but which assume great importance in physical calculations.
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