Divonne's higher-order jet-differential ampleness conjecture

From papers

Let XPnX\subset\mathbb P^n be the intersection of at least n/(k+1)n/(k+1) very general hypersurfaces of sufficiently high degree. Let Ek,mTXE_{k,m}T_X^* denote the bundle of invariant jet differentials of order kk and weighted degree mm.

Higher-order jet-differential ampleness conjecture. The bundle map

Ek,mTXXE_{k,m}T_X^*\to X

is ample, and therefore XX is hyperbolic.

This is proposed as a higher-order generalization of Debarre's cotangent-bundle ampleness conjecture, since E1,mTX=SmTXE_{1,m}T_X^*=S^mT_X^*. The source notes vanishing results for low jet order and explains that ampleness would imply Kobayashi hyperbolicity; the proposed generalization remains open.

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Sources & referencesView supporting material

Primary source

Simone Diverio and Stefano Trapani, “A remark on the codimension of the Green-Griffiths locus of generic projective hypersurfaces of high degree”, arXiv:0902.3741 (2010).

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