Chirality of Real Non-singular Cubic Fourfolds and Their Pure Deformation Classification

Abstract

In our previous works we have classified real non-singular cubic hypersurfaces in the 5-dimensional projective space up to equivalence that includes both real projective transformations and continuous variations of coefficients preserving the hypersurface non-singular. Here, we perform a finer classification giving a full answer to the chirality problem: which of real non-singular cubic hypersurfaces can not be continuously deformed to their mirror reflection.Comment: 21 pages, 12 Figures, Journal reference added, no changes in the tex