Equinormalizability and topologically triviality of deformations of isolated curve singularities over smooth base spaces

Abstract

We give a $\delta$-constant criterion for equinormalizability of deformations of isolated (not necessarily reduced) curve singularities over smooth base spaces of dimension $\ge 1$. For one-parametric families of isolated curve singularities, we show that their topologically triviality is equivalent to the admission of weak simultaneous resolutions.

arXiv commentDedicated to Professor Gert-Martin Greuel on the occasion of his 70th birthday, to be published in Kodai Mathematical Journal (2015)