The decomposition of tensor spaces with almost complex structure
Lakomá, Lenka, Jukl, Marek
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Lakomá, Lenka, Jukl, Marek
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Konopka, Czesław (1993)
Publications de l'Institut Mathématique. Nouvelle Série
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Carlo Alberto Mantica, Luca Guido Molinari (2012)
Colloquium Mathematicae
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We extend a remarkable theorem of Derdziński and Shen, on the restrictions imposed on the Riemann tensor by the existence of a nontrivial Codazzi tensor. We show that the Codazzi equation can be replaced by a more general algebraic condition. The resulting extension applies both to the Riemann tensor and to generalized curvature tensors.
Mircea Crâşmăreanu (2001)
Mathematica Bohemica
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First, by using the formulae of Krupka, the trace decomposition for some particular classes of tensors of types (1, 2) and (1, 3) is obtained. Second, it is proved that the traceless part of a tensor is an almost projective invariant of weight 1. We apply this result to Weyl curvature tensors.
Gravel, P., Gauthier, C. (2004)
International Journal of Mathematics and Mathematical Sciences
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Carlo Mantegazza, Samuele Mongodi, Michele Rimoldi (2017)
Geometric Flows
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We compute the evolution equation of the Cotton and the Bach tensor under the Ricci flow of a Riemannian manifold, with particular attention to the three dimensional case, and we discuss some applications.
Sharma, Ramesh (1989)
International Journal of Mathematics and Mathematical Sciences
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Pušić, Nevena (1994)
Publications de l'Institut Mathématique. Nouvelle Série
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