Riemannian Geometry of Contact and Symplectic Manifolds
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Cites background from "Riemannian Geometry of Contact and ..."
...According to Blair [2], the normality of an almost contact structure is expressed by [φ, φ] = −2dη ⊗ ξ, where [φ, φ] denotes the Nijenhuis tensor of φ defined by [φ, φ](X,Y ) = φ2[X,Y ] + [φX, φY ]− φ[φX, Y ]− φ[X,φY ] for any vector fields X,Y on M2n+1....
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...Note that the (almost) co-Kähler manifolds in fact are the (almost) cosymplectic manifolds studied in [1, 2, 6, 7, 10]....
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...Almost co-Kähler manifolds were first introduced by Blair [1] and studied by Goldberg and Yano [7] and Olszak et al. [6, 10]....
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...According to Blair [2], the normality of an almost contact structure is expressed by [φ, φ] = −2dη ⊗ ξ, where [φ, φ] denotes the Nijenhuis tensor of φ defined by [φ, φ](X,Y ) = φ2[X,Y ] + [φX, φY ]− φ[φX, Y ]− φ[X,φY ] for any vector fields X,Y on M2n+1....
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4 citations
4 citations
4 citations
4 citations