%0 Journal Article
%T Smooth multiparameter perturbation of polynomials and operators
%A Mark Losik
%A Peter W. Michor
%A Armin Rainer
%J Mathematics
%D 2007
%I arXiv
%X This paper has been withdrawn by the authors due to a gap in the proof of the main result (in 5.3).
%U http://arxiv.org/abs/0705.2093v2