2012
DOI: 10.1007/s00220-012-1482-3
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Six-Dimensional Nearly Kähler Manifolds of Cohomogeneity One (II)

Abstract: Let M be a six dimensional manifold, endowed with a cohomogeneity one action of G = SU 2 ×SU 2 , and M reg ⊂ M its subset of regular points. We show that M reg admits a smooth, 2-parameter family of G-invariant, non-isometric strict nearly Kähler structures and that a 1-parameter subfamily of such structures smoothly extends over a singular orbit of type S 3 . This determines a new class of examples of nearly Kähler structures on T S 3 .

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Cited by 14 publications
(18 citation statements)
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“…Only very recently, a combination of G-structure methods [33] with a two-step reductionà la Maldacena-Núñez [20] has produced explicit, analytic, N = 1 warped product AdS 4 solutions in massive IIA with (typically, but not necessarily, hyperbolic) internal spaces with SU(3) × SU(3)-1 Only very recently, existence results of inhomogeneous nearly-Kähler metrics on S 6 and other manifolds have been given [28]. See also [29,30]. Analytic, closed form expressions for such metrics are not known.…”
mentioning
confidence: 99%
“…Only very recently, a combination of G-structure methods [33] with a two-step reductionà la Maldacena-Núñez [20] has produced explicit, analytic, N = 1 warped product AdS 4 solutions in massive IIA with (typically, but not necessarily, hyperbolic) internal spaces with SU(3) × SU(3)-1 Only very recently, existence results of inhomogeneous nearly-Kähler metrics on S 6 and other manifolds have been given [28]. See also [29,30]. Analytic, closed form expressions for such metrics are not known.…”
mentioning
confidence: 99%
“…In [15,16], Podestà and Spiro gave the list of all 6-dimensional manifolds of cohomogeneity 1 on which the existence of NK-structures of cohomogeneity 1 is possible.…”
Section: Manifolds Of Cohomogeneitymentioning
confidence: 99%
“…We refer the reader to [1,14,17,18] for basic notions on cohomogeneity one isometric actions. Following the notation of [18], we consider the Lie algebra so(4) ∼ = su(2) + su(2) and we fix the following basis of su(2)…”
Section: Non-compact Cohomogeneity One Examplesmentioning
confidence: 99%