On the duality principle in pseudo-Riemannian Osserman manifolds |
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Authors: | V Andrejić Z Rakić |
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Institution: | Faculty of Mathematics, University of Belgrade, Serbia |
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Abstract: | Here we give a natural extension of the duality principle for the curvature tensor of pointwise pseudo-Riemannian Osserman manifolds. We proved that this extended duality principle holds under certain additional assumptions. Also, it is proved that duality principle holds for every four-dimensional Osserman manifold. |
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Keywords: | 53B30 53C50 |
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