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Deformations of Nearly K\"{a}hler Structures

Differential Geometry 2019-01-08 v3

Abstract

We study the space of nearly K\"{a}hler structures on compact 6-dimensional manifolds. In particular, we prove that the space of infinitesimal deformations of a strictly nearly K\"{a}hler structure (with scalar curvature scal) modulo the group of diffeomorphisms, is isomorphic to the space of primitive co-closed (1,1)-eigenforms of the Laplace operator for the eigenvalue 2scal/5.

Keywords

Cite

@article{arxiv.math/0611223,
  title  = {Deformations of Nearly K\"{a}hler Structures},
  author = {Andrei Moroianu and Paul-Andi Nagy and Uwe Semmelmann},
  journal= {arXiv preprint arXiv:math/0611223},
  year   = {2019}
}

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15 pages