On the parameter dependence of the real cubic surfaces in arnold's form

M Falconi, EA Lacomba, J Llibre�- Rendiconti del Circolo Matematico di�…, 2004 - Springer
M Falconi, EA Lacomba, J Llibre
Rendiconti del Circolo Matematico di Palermo, 2004Springer
We consider the topological classification of cubic surfaces which are obtained as
intersection of the sphere S^ 3 with the algebraic variety defined by the zeroes of a
homogeneous cubic polynomial in Arnold's normal form. This classification is based on the
parameters appearing in this normal form, obtaining a correspondence between the
parameters of the surface and its topological type. General classifications of cubic surfaces
are made in the projective space ℙ 3 (ℝ), but our method, based on a very simple�…
Abstract
We consider the topological classification of cubic surfaces which are obtained as intersection of the sphere with the algebraic variety defined by the zeroes of a homogeneous cubic polynomial in Arnold’s normal form. This classification is based on the parameters appearing in this normal form, obtaining a correspondence between the parameters of the surface and its topological type. General classifications of cubic surfaces are made in the projective space ℙ3(ℝ), but our method, based on a very simple combinatorial procedure is easier to implement in . We split the cubic surfaces parameter space into ten equivalence classes.
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