  V. I. Arnold proved in 1991 (published in 1993) that the intersection
multiplicity between two germs of analytic subvarieties at a fixed point of a
holomorphic invertible self-map remains bounded when one of the germs is
dragged by iterations of the self map. The proof is based on the
Skolem-Mahler-Lech theorem on zeros in recurrent sequences.
  We give a different proof, based on the Noetherianity of certain algebras,
which allows to generalize the Arnold's theorem for local actions of arbitrary
finitely generated commutative groups, both with discrete and infinitesimal
generators. Simple examples show that for non-commutative groups the analogous
assertion fails.
