Abstract
We study the lightlike geometry of the second fundamental form of the intersection between an algebraic hypersurface in $\mathbb{C}_{s}^{n}$ and a pseudosphere $S_{2s}^{2n-1}(2/\sqrt{k})$ including a class of extrinsic spheres which are not homotopy spheres.
Citation
Sorin Dragomir. Krishan L. Duggal. "Indefinite Extrinsic Spheres." Tsukuba J. Math. 32 (2) 335 - 348, December 2008. https://doi.org/10.21099/tkbjm/1496165234
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