A. Zaharia, ON SOME DERIVATIONS OF NEGATIVE WEIGHTS AND SIMPLE GERMS WITH NONISOLATED SINGULARITIES, Bulletin of the London Mathematical Society, 25, 1993, pp. 467-475
We show that for some non-isolated singularities f: (C(n+1), 0) --> (C
, 0) there exists no derivation of negative weight which annihilates f
. We use this result for proving that the inner modality of some simpl
e germs is zero.