Milnor fillable contact structures are universally tight

Abstract

We show that the canonical contact structure on the link of a normal complex singularity is universally tight. As a corollary we show the existence of closed, oriented, atoroidal 3-manifolds with infinite fundamental groups which carry universally tight contact structures that are not deformations of taut (or Reebless) foliations. This answers two questions of Etnyre.

arXiv comment12 pages, 2 figures. Improved exposition following a referee's comments