Riemannian manifolds with almost constant scalar curvature.
Nicolescu, Liviu, Pripoae, Gabriel (1999)
Balkan Journal of Geometry and its Applications (BJGA)
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Nicolescu, Liviu, Pripoae, Gabriel (1999)
Balkan Journal of Geometry and its Applications (BJGA)
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Zbigniew Olszak (1986)
Annales Polonici Mathematici
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Tshikunguila Tshikuna-Matamba (2005)
Extracta Mathematicae
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It is known that L. Vanhecke, among other geometers, has studied curvature properties both on almost Hermitian and almost contact metric manifolds.
The purpose of this paper is to interrelate these properties within the theory of almost contact metric submersions. So, we examine the following problem:
Yana Alexieva, Stefan Ivanov (1999)
Archivum Mathematicum
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Riemannian manifolds for which a natural skew-symmetric curvature operator has constant eigenvalues on helices are studied. A local classification in dimension three is given. In the three dimensional case one gets all locally symmetric spaces and all Riemannian manifolds with the constant principal Ricci curvatures , which are not locally homogeneous, in general.
Adam Kowalczyk (1984)
Banach Center Publications
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Sarić, Branko (2000)
Lobachevskii Journal of Mathematics
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