On Fano complete intersections in rational homogeneous varieties
Résumé
Complete intersections inside rational homogeneous varieties provide interesting examples of Fano manifolds. For example, if X = ∩ r i=1 D i ⊂ G/P is a general complete intersection of r ample divisors such that K * G/P ⊗ O G/P (− i D i) is ample, then X is Fano. We first classify these Fano complete intersections which are locally rigid. It turns out that most of them are hyperplane sections. We then classify general hyperplane sections which are quasi-homogeneous.
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