Apparent contours of nonsingular real cubic surfaces
arXiv:1306.2002
Abstract
We give a complete deformation classification of real Zariski sextics, that is of generic apparent contours of nonsingular real cubic surfaces. As a by-product, we observe a certain "reversion" duality in the set of deformation classes of these sextics.
61 pages, 8 figures, Revised version to be published in Transactions AMS: some minor corrections, a missing lemma is included