A note on 1-parameter stable unfoldings
Abstract
We give two characterisations of when a map-germ admits a 1-parameter stable unfolding, one related to the Ke-codimension and another related to the normal form of a versal unfolding. We then prove that there are infinitely many finitely determined map-germs of multiplicity 4 from K3 to K3 which do not admit a 1-parameter stable unfolding.
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