اشترك بالحزمة الذهبية واحصل على وصول غير محدود شمرا أكاديميا
تسجيل مستخدم جديدNormalization of congruence of bitangents to a hypersurface in $mathbb P^3$
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A congruence is a surface in the Grassmannian ${rm Gr}(2, 4)$. In this paper, we consider the normalization of congruence of bitangents to a hypersurface in $mathbb P^3$. We call it the Fano congruence of bitangents. We give a criterion for smoothness of the Fano congruence of bitangents and describe explicitly their degenerations in a general Lefschetz pencil in the space of hypersurfaces in $mathbb P^3$.
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