The differential geometry of almost Hermitian almost contact metric submersions.
Tshikuna-Matamba, T. (2004)
International Journal of Mathematics and Mathematical Sciences
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Tshikuna-Matamba, T. (2004)
International Journal of Mathematics and Mathematical Sciences
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Bill Watson (2000)
Bollettino dell'Unione Matematica Italiana
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Se la varietà base, , di una submersione quasi-Hermitiana, , è una -varietà e le fibre sono subvarietà superminimali, allora lo spazio totale, , è . Se la varietà base, , è Hermitiana e le fibre sono subvarietà bidimensionali e superminimali, allora lo spazio totale, , è Hermitiano.
Ana Dorotea Tarrío Tobar (1987)
Extracta Mathematicae
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H.R. Dowson, T.A. Gillespie, P.G. Spain (1976)
Mathematische Annalen
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Ngaiming Mok (1986)
Mathematische Annalen
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David E.. Gibbs (1973)
Mathematische Annalen
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Erdem, Sadettin (1999)
Serdica Mathematical Journal
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It is shown that the spheres S^(2n) (resp: S^k with k ≡ 1 mod 4) can be given neither an indefinite metric of any signature (resp: of signature (r, k − r) with 2 ≤ r ≤ k − 2) nor an almost paracomplex structure. Further for every given Riemannian metric on an almost para-Hermitian manifold with the associated 2-form φ one can construct an almost Hermitian structure (under certain conditions, two different almost Hermitian structures) whose associated 2-form(s) is φ.
Ernst A. Ruh, Min-Oo (1981)
Mathematische Annalen
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R. Castro, A. Tarrio (1990)
Annales Polonici Mathematici
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