Properties of the nearly Kähler S3× S3

M Moruz, L Vrancken - Publications de l'Institut Mathematique, 2018‏ - doiserbia.nb.rs
We show how the metric, the almost complex structure and the almost product structure of
the homogeneous nearly Kahler S3× S3 can be recovered from a submersion π: S3× S3× …

Locally homogeneous nearly Kähler manifolds

V Cortés, JJ Vásquez - Annals of Global Analysis and Geometry, 2015‏ - Springer
We construct locally homogeneous six-dimensional nearly Kähler manifolds as quotients of
homogeneous nearly Kähler manifolds M by freely acting finite subgroups of Aut _0 (M) Aut …

[HTML][HTML] Special Lagrangians in nearly Kähler CP3

B Aslan - Journal of Geometry and Physics, 2023‏ - Elsevier
This article explores special Lagrangian submanifolds in CP 3, viewed as a nearly Kähler
manifold, from two different perspectives. Intrinsically, using a moving frame set-up, and …

Cyclic homogeneous Riemannian manifolds

PM Gadea, JC González-Dávila, JA Oubiña - Annali di Matematica Pura ed …, 2016‏ - Springer
Some characterizations and properties of cyclic and traceless cyclic homogeneous
Riemannian manifolds are given. The classification of simply connected cyclic …

[HTML][HTML] Nearly Kähler six-manifolds with two-torus symmetry

G Russo, A Swann - Journal of Geometry and Physics, 2019‏ - Elsevier
We consider nearly Kähler-manifolds with effective 2-torus symmetry. The multi-moment
map for the T 2-action becomes an eigenfunction of the Laplace operator. At regular values …

Harmonicity and minimality of distributions on Riemannian manifolds via the intrinsic torsion

JC González-Dávila - Revista Matemática Iberoamericana, 2014‏ - ems.press
We consider a q-dimensional distribution as a section of the Grassmannian bundle Gq (Mn)
of q-planes and we derive, in terms of the intrinsic torsion of the corresponding S (O (q)× O …

3-symmetric spaces, Ricci solitons, and homogeneous structures

T Murphy, PA Nagy - arxiv preprint arxiv:2501.07864, 2025‏ - arxiv.org
The full classification of Riemannian $3 $-symmetric spaces is presented. Up to Riemannian
products the main building blocks consist in (possibly symmetric) spaces with semisimple …

Quaternion-K\" ahler manifolds with non-negative quaternionic sectional curvature

A Moroianu, U Semmelmann, G Weingart - arxiv preprint arxiv …, 2024‏ - arxiv.org
Compact Hermitian symmetric spaces are K\" ahler manifolds with constant scalar curvature
and non-negative sectional curvature. A famous result by A. Gray states that, conversely, a …

[HTML][HTML] Pseudo-holomorphic curves in nearly Kähler manifolds

F Lubbe, L Schäfer - Differential Geometry and its Applications, 2014‏ - Elsevier
We study pseudo-holomorphic curves in general nearly Kähler manifolds. For that purpose,
we first introduce the fundamental equations of submanifold geometry in terms of the …

Invariant Ricci-flat metrics of cohomogeneity one with Wallach spaces as principal orbits

H Chi - Annals of Global Analysis and Geometry, 2019‏ - Springer
We construct a continuous 1-parameter family of smooth complete Ricci-flat metrics of
cohomogeneity one on vector bundles over CP^ 2 CP 2, HP^ 2 HP 2 and OP^ 2 OP 2 with …