English

Aeppli cohomology and Gauduchon metrics

Differential Geometry 2019-09-09 v1

Abstract

Let (M,J,g,ω)(M,J,g,\omega) be a complete Hermitian manifold of complex dimension n2n\ge2. Let 1pn11\le p\le n-1 and assume that ωnp\omega^{n-p} is (+)(\partial+\overline{\partial})-bounded. We prove that, if ψ\psi is an L2L^2 and dd-closed (p,0)(p,0)-form on MM, then ψ=0\psi=0. In particular, if MM is compact, we derive that if the Aeppli class of ωnp\omega^{n-p} vanishes, then HBCp,0(M)=0H^{p,0}_{BC}(M)=0. As a special case, if MM admits a Gauduchon metric ω\omega such that the Aeppli class of ωn1\omega^{n-1} vanishes, then HBC1,0(M)=0H^{1,0}_{BC}(M)=0.

Keywords

Cite

@article{arxiv.1909.02842,
  title  = {Aeppli cohomology and Gauduchon metrics},
  author = {Riccardo Piovani and Adriano Tomassini},
  journal= {arXiv preprint arXiv:1909.02842},
  year   = {2019}
}

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10 pages