English

On cohomogeneity one Hermitian non-K\"ahler metrics

Differential Geometry 2023-03-31 v3

Abstract

We investigate the geometry of Hermitian manifolds endowed with a compact Lie group action by holomorphic isometries with principal orbits of codimension one. In particular, we focus on a special class of these manifolds constructed by following B\'erard-Bergery which includes, among the others, the holomorphic line bundles on CPm1\mathbb C\mathbb P^{m-1}, the linear Hopf manifolds and the Hirzebruch surfaces. We characterize their invariant special Hermitian metrics, such as balanced, K\"ahler-like, pluriclosed, locally conformally K\"ahler, Vaisman, Gauduchon. Furthermore, we construct new examples of cohomogeneity one Hermitian metrics solving the second-Chern-Einstein equation and the constant Chern-scalar curvature equation.

Keywords

Cite

@article{arxiv.2010.08475,
  title  = {On cohomogeneity one Hermitian non-K\"ahler metrics},
  author = {Daniele Angella and Francesco Pediconi},
  journal= {arXiv preprint arXiv:2010.08475},
  year   = {2023}
}

Comments

Minor corrections. To appear in Proc. R. Soc. Edinb., Sect. A, Math