English

Invariant Jet differentials and Asymptotic Serre duality

Algebraic Geometry 2024-11-12 v3 Differential Geometry

Abstract

We generalize the main result of Demailly \cite{D2} for the bundles Ek,mGG(V)E_{k,m}^{GG}(V^*) of jet differentials of order kk and weighted degree mm to the bundles Ek,m(V)E_{k,m}(V^*) of the invariant jet differentials of order kk and weighted degree mm. Namely, Theorem 0.5 from \cite{D2} and Theorem 9.3 from \cite{D1} provide a lower bound ckkmn+kr1\frac{c^k}{k}m^{n+kr-1} on the number of the linearly independent holomorphic global sections of Ek,mGGVO(mδA)E_{k,m}^{GG} V^* \bigotimes \mathcal{O}(-m \delta A) for some ample divisor AA. The group GkG_k of local reparametrizations of (C,0)(\mathbb{C},0) acts on the kk-jets by orbits of dimension kk, so that there is an automatic lower bound ckkmn+kr1\frac{c^k}{k} m^{n+kr-1} on the number of the linearly independent holomorphic global sections of Ek,mVO(mδA)E_{k,m}V^* \bigotimes \mathcal{O}(-m \delta A). We formulate and prove the existence of an asymptotic duality along the fibers of the Green-Griffiths jet bundles over projective manifolds. We also prove a Serre duality for asymptotic sections of jet bundles. An application is also given for partial application to the Green-Griffiths conjecture.

Keywords

Cite

@article{arxiv.2012.09024,
  title  = {Invariant Jet differentials and Asymptotic Serre duality},
  author = {Mohammad Reza Rahmati},
  journal= {arXiv preprint arXiv:2012.09024},
  year   = {2024}
}
R2 v1 2026-06-23T21:01:16.085Z