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arXiv · 1207.5786

Principal torus bundles of Lorentzian S-manifolds and the ϕ-null Osserman condition

Letizia Brunetti·Angelo V. Caldarella
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Abstract

The main result we give in this brief note relates, under suitable hypotheses, the ϕ-null Osserman, the null Osserman and the classical Osserman conditions to each other, via semi-Riemannian submersions as projection maps of principal torus bundles arising from a Lorentzian S-manifold.

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Letizia Brunetti, Angelo V. Caldarella. 2012-07-24. Principal torus bundles of Lorentzian S-manifolds and the ϕ-null Osserman condition. https://doi.org/10.2996/kmj%2F1372337513

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