2 papers
math.AG2020
A characterization of secant varieties of Severi varieties among cubic hypersurfaces
Baohua Fu, Yewon Jeong, Fyodor L. Zak
It is shown that an irreducible cubic hypersurface with nonzero Hessian and smooth singular locus is the secant variety of a Severi variety if and only if its Lie algebra of infini…
math.AG2017
Moduli map of second fundamental forms on a nonsingular intersection of two quadrics
Yewon Jeong
In [GH], Griffiths and Harris asked whether a projective complex submanifold of codimension two is determined by the moduli of its second fundamental forms. More precisely, given a…