Let f be a germ of plane curve, we define the δ-degree of sufficiency of f to be the smallest integer r such that for anuy germ g such that j(r) f = j(r) g then there is a set of disjoint annuli in S3 whose boundaries consist of a component of the link of f and a component of the link of g. We establish a formula for the δ-degree of sufficiency in terms of link invariants of plane curves singularities and, as a consequence of this formula, we obtain that the δ-degree of sufficiency is equal to the Cº-degree of sufficiency.
@article{urn:eudml:doc:41065,
title = {Note on the degree of Co-sufficiency of plane curves.},
journal = {Publicacions Matem\`atiques},
volume = {33},
year = {1989},
pages = {37-46},
zbl = {0686.32003},
mrnumber = {MR1004223},
language = {en},
url = {http://dml.mathdoc.fr/item/urn:eudml:doc:41065}
}
Costa, Antonio F. Note on the degree of Cº-sufficiency of plane curves.. Publicacions Matemàtiques, Tome 33 (1989) pp. 37-46. http://gdmltest.u-ga.fr/item/urn:eudml:doc:41065/