Orthogonal almost-complex structures of minimal energy
微分几何
2007-05-23 v1
摘要
In this article we apply a Bochner type formula to show that on a compact conformally flat riemannian manifold (or half-conformally flat in dimension 4) certain types of orthogonal almost-complex structures, if they exist, give the absolute minimum for the energy functional. We give a few examples when such minimizers exist, and in particular, we prove that the standard almost-complex structure on the round S^6 gives the absolute minimum for the energy. We also discuss the uniqueness of this minimum and the extension of these results to other orthogonal G-structures.
引用
@article{arxiv.math/0609511,
title = {Orthogonal almost-complex structures of minimal energy},
author = {G. Bor and L. Hernández-Lamoneda and M. Salvai},
journal= {arXiv preprint arXiv:math/0609511},
year = {2007}
}