Suppose that the 3-manifold
M is given by integral surgery along a link L ⊂ S3. In the following we construct a
stable map from M to the plane, whose singular set is canonically oriented. We
obtain upper bounds for the minimal numbers of crossing singularities, nonsimple
singularities, and connected components of fibers of stable maps from M to the plane
in terms of properties of L.
Keywords
stable map, 3-manifold, surgery, negative knot,
Thurston-Bennequin number