Equivariantly simple invariant singularities under prime-order group actions exist only for real and almost-real representations.
Normal forms for functions near degenerate critical points, the Weyl groups ofA k,D k,E k and Lagrangian singularities
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Actions of a group of prime order without equivariantly simple germs
Equivariantly simple invariant singularities under prime-order group actions exist only for real and almost-real representations.