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  • 1
    Keywords: Catalysis
    ISBN: 9781402036927
    Language: English
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  • 2
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    Dordrecht : Springer
    Keywords: Chemistry ; Chemistry, Physical organic ; Chemistry, inorganic ; Mechanics, applied ; Molecular structure ; Quantum theory
    ISBN: 9781402036880
    Language: English
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  • 3
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    Dordrecht : Springer
    Keywords: Biology ; Data processing ; Biomedical engineering ; Chemistry
    ISBN: 9781402035876
    Language: English
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  • 4
    Unknown
    Dordrecht : Anamaya Publishers
    Keywords: Chemistry, Organic ; Marine ecology
    ISBN: 9781402034848
    Language: English
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    Journal of geometry 62 (1998), S. 1-12 
    ISSN: 1420-8997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract We present a study of natural almost Hermitian structures on twistor spaces of quaternionic Kahler manifolds. This is used to supply (4n + 2)-dimensional examples (n 〉 1) of symplec tic non-Kähler manifolds. Studying their curvature properties we give a negative answer to the questions raised by D.Blair-S.Ianus and A.Gray, respectively, of whether a compact almost Kähler manifold with Hermitian Ricci tensor or whose curvature tensor belongs to the class AH2 is Kähler.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    Journal of geometry 49 (1994), S. 106-116 
    ISSN: 1420-8997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract The aim of the paper is to prove that if a complex Riemannian manifold with holomorphic characteristic connection is holomorphically projective equivalent to a locally symmetric space then it is a complex Riemannian manifold of pointwise constant holomorphic characteristic sectional curvature.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    Journal of geometry 59 (1997), S. 67-76 
    ISSN: 1420-8997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Given a complex Riemannian metrich and a torsion-free complex affine connection ▽ on a complex manifold, a dual holomorphically-planar curve of ▽ is defined as a curve whose tangent complex plane, generated by its tangent 1-form, is parallel along the curve. The corresponding dual holomorphically projective group is defined as a group of transformations of connections preserving dual holomorphically-planar curves. The class of connections complex semi-compatible with the metrich and pairs of complex semi-conjugate connections are defined using the relations between their holomorphically-planar curves and their dual holomorphically-planar curves. The dual holomorphically-projective curvature tensor for a connection complex semi-compatible withh is determined as an invariant of the dual holomorphically-projective group. Dual holomorphically-projectively flat connections complex semi-compatible withh are characterized as connections with vanishing dual holomorphically-projective curvature tensor.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    Journal of geometry 53 (1995), S. 89-99 
    ISSN: 1420-8997
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Given a pseudo Riemannian metrich and a torsion-free affine connection ∇ on a smoothn-manifold M,a dual geodesic curve of ∇ is defined as a curve whose tangent 1-form is parallel along the curve. The corresponding dual-projective group is defined as a group of transformations of connections preserving dual-geodesic curves. The class of connections semi-compatible with the metrich and pairs of semi-conjugate connections are defined using the relations between their geodesics and dual-geodesics. The dual-projective curvature tensor for a connection semi-compatible withh is determined as an invariant of the dual projective group. Dual-projectively flat connections semi-compatible withh are characterized as connections with vanishing dual-projective curvature tensor. As an application we recover the fundamental theorem for non-degenerate hypersurface immersions.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 123 (1997), S. 53-59 
    ISSN: 1436-5081
    Keywords: 53C15 ; 53C55 ; 53B35 ; Compact Hermitian surfaces ; Hermitian curvature ; Einstein-type conditions
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Two Einstein-type conditions for the Hermitian curvature tensor are considered on a compact Hermitian surface: It is proved that if the symmetric part of the Ricci tensors is a scalar multiple of the metric with a negative constant, then the metric is Kaehler. If the Hermitian surface satisfies the Hermite-Einstein condition with a non positive constant, then the metric is Kaehler.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Springer
    Monatshefte für Mathematik 123 (1997), S. 321-336 
    ISSN: 1436-5081
    Keywords: 53A15 ; Complex affine immersions ; complex analytic Riemannian manifold ; H-projective flatness ; dualH-projective flatness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Mathematics
    Notes: Abstract Two geometric versions of the fundamental theorem for non-degenerate complex affine hypersurface immersions are proved. We consider non-degenerate complex affine hypersurface immersions with complex transversal connection form (or equivalently, with holomorphic normalization) and prove that the conormal map is a holomorphic map. These considerations inspired the definitions of complex semi-compatible and complex semi-conjugate connections. This allows us to formulate the integrability conditions of the fundamental theorem, on one hand in terms of the induced connection, which has to be complex semi-compatible and dualH-projective flat, and on the other hand, in terms of its semi-conjugate connection, which has to beH-projective flat. Using this results, we formulate the conditions of the fundamental theorem in terms of anyH-projective flat complex affine connection.
    Type of Medium: Electronic Resource
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