Geodesic
Strong duality principle for four-dimensional Osserman manifolds
Kragujevac Journal of Mathematics, Tome 33 (2010) no. 1 
Vladica Andrejić. Strong duality principle for four-dimensional Osserman manifolds. Kragujevac Journal of Mathematics, Tome 33 (2010) no. 1. http://geodesic.mathdoc.fr/item/KJM_2010_33_1_a1/
@article{KJM_2010_33_1_a1,
     author = {Vladica Andreji\'c},
     title = {Strong duality principle for four-dimensional {Osserman} manifolds},
     journal = {Kragujevac Journal of Mathematics},
     pages = {17 - 28},
     year = {2010},
     volume = {33},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/KJM_2010_33_1_a1/}
}
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TI  - Strong duality principle for four-dimensional Osserman manifolds
JO  - Kragujevac Journal of Mathematics
PY  - 2010
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IS  - 1
UR  - http://geodesic.mathdoc.fr/item/KJM_2010_33_1_a1/
ID  - KJM_2010_33_1_a1
ER  - 
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%T Strong duality principle for four-dimensional Osserman manifolds
%J Kragujevac Journal of Mathematics
%D 2010
%P 17 - 28
%V 33
%N 1
%U http://geodesic.mathdoc.fr/item/KJM_2010_33_1_a1/
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Voir la notice de l'article provenant de la source eLibrary of Mathematical Institute of the Serbian Academy of Sciences and Arts

In this paper we deal with pseudo-Riemannian Osserman curvature tensors. We define a concept of strong duality principle, and we prove that strong duality principle holds for four-dimensional Osserman curvature tensor.