English

An andreotti-grauert theorem with $l^r$ estimates

Complex Variables 2019-10-14 v9

Abstract

By a theorem of Andreotti and Grauert if ω\omega is a (p,q)(p,q) current, q<n,q < n, in a Stein manifold Ω, ˉ\displaystyle \Omega ,\ \bar \partial closed and with compact support, then there is a solution uu to ˉu=ω\bar \partial u=\omega still with compact support in Ω.\displaystyle \Omega . The main result of this work is to show that if moreover ωLr(m),\displaystyle \omega \in L^{r}(m), where mm is a suitable Lebesgue measure on the Stein manifold, then we have a solution uu with compact support {\sl and} in Ls(m), 1s=1r12(n+1).L^{s}(m),\ \frac{1}{s}=\frac{1}{r}-\frac{1}{2(n+1)}. We prove it by estimates in LrL^{r} spaces with weights.

Cite

@article{arxiv.1203.0759,
  title  = {An andreotti-grauert theorem with $l^r$ estimates},
  author = {Eric Amar},
  journal= {arXiv preprint arXiv:1203.0759},
  year   = {2019}
}

Comments

Thanks to the referee, the presentation is highly enhanced and some typos are fixed. This will appear in:Annali de la Scuola Norm. Sup. di Pisa

R2 v1 2026-06-21T20:28:47.101Z