English

Vanishing theorems on (l|k)-strong Kaehler manifolds with torsion

Differential Geometry 2013-10-16 v1 High Energy Physics - Theory

Abstract

We derive sufficient conditions for the vanishing of plurigenera, pm(J),m>0p_m(J), m>0, on compact (l|k)-strong, ωlˉωk=0\omega^l\wedge \partial\bar\partial \omega^k=0, Kaehler manifolds with torsion. In particular, we show that the plurigenera of compact (l|k)-strong manifolds, k<n-1, for which the holonomy of the unique Hermitian connection with skew-symmetric torsion is contained in SU(n) vanish. As a consequence all generalized k-Gauduchon manifolds with holonomy of the Hermitian connection with skew-symmetric torsion contained in SU(n) do not admit holomorphic (n,0) forms. Furthermore we show that all conformally balanced, (l|k)-strong Kaehler manifolds with torsion, k<n-1, are K\"ahler. We also give several compact examples of (l|k)-strong Kaehler and Calabi-Yau manifolds with torsion.

Keywords

Cite

@article{arxiv.1202.6470,
  title  = {Vanishing theorems on (l|k)-strong Kaehler manifolds with torsion},
  author = {Stefan Ivanov and George Papadopoulos},
  journal= {arXiv preprint arXiv:1202.6470},
  year   = {2013}
}

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20 pages