Homogeneous Lorentzian 3-manifolds with a parallel null vector field.
Batat, W., Calvaruso, G., De Leo, B. (2009)
Balkan Journal of Geometry and its Applications (BJGA)
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Batat, W., Calvaruso, G., De Leo, B. (2009)
Balkan Journal of Geometry and its Applications (BJGA)
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Al-Aqeel, Adnan, Bejancu, Aurel (2006)
Acta Mathematica Academiae Paedagogicae Nyí regyháziensis. New Series [electronic only]
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Tsagas, Grigorios, Kobotis, Apostolos (1996)
Balkan Journal of Geometry and its Applications (BJGA)
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Włodzimierz Jelonek (2000)
Annales Polonici Mathematici
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The aim of this paper is to give an easy explicit description of 3-K-contact structures on certain SO(3)-principal fibre bundles over quaternionic-Kähler manifolds.
Teresa Arias-Marco (2007)
Archivum Mathematicum
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In this note we study the Ledger conditions on the families of flag manifold , , constructed by N. R. Wallach in (Wallach, N. R., Compact homogeneous Riemannian manifols with strictly positive curvature, Ann. of Math. 96 (1972), 276–293.). In both cases, we conclude that every member of the both families of Riemannian flag manifolds is a D’Atri space if and only if it is naturally reductive. Therefore, we finish the study of made by D’Atri and Nickerson in (D’Atri, J. E., Nickerson,...
Alekseevsky, Dmitrii V., Nikonorov, Yurii G. (2009)
SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]
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Szenthe, János (2002)
Zeszyty Naukowe Uniwersytetu Jagiellońskiego. Universitatis Iagellonicae Acta Mathematica
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Druţă, Simona-Luiza (2009)
Balkan Journal of Geometry and its Applications (BJGA)
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Ryszard Deszcz (1993)
Colloquium Mathematicae
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WŁodzimierz Jelonek (1998)
Colloquium Mathematicae
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The aim of this paper is to give a characterization of regular K-contact A-manifolds.