Results 31 to 40 of about 14,568 (187)
Curvature Blow-up in Doubly-warped Product Metrics Evolving by Ricci Flow [PDF]
Memoirs of the American Mathematical Society, 2019 For any manifold N p N^p admitting an Einstein metric with positive Einstein constant, we study the behavior of the Ricci flow on high-dimensional products M = N p
Maxwell Stolarski
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Levi-Civita Ricci-Flat Doubly Warped Product Hermitian Manifolds
Advances in Mathematical Physics, 2022 Let M1,g and M2,h be two Hermitian manifolds. The doubly warped product (abbreviated as DWP) Hermitian manifold of M1,g and M2,h is the product manifold M1×M2 endowed with the warped product Hermitian metric G=f22g+f12h, where f1 and f2 are positive ...
Qihui Ni +3 more
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Einstein Doubly Warped Product Poisson Manifolds
SymmetryIn this paper, we study Einstein doubly warped product Poisson manifolds. First, we provide necessary and sufficient conditions for a doubly warped product manifold (M=Bf×bF,g,Π), equipped with a Poisson structure Π to be a contravariant Einstein ...
F. Aloui, Ibrahim Aldayel
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Pointwise bi-slant doubly warped product submanifolds in para-Kaehler manifolds
FilomatIn this article, we consider pointwise slant and pointwise bi-slant submanifolds whose ambient spaces are para-Kaehler manifolds. We prove that there exist pointwise bi-slant K =k2 K?1 ?
Sedat Ayaz, Yılmaz Gündüzalp
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Biharmonic maps between doubly warped product manifolds [PDF]
, 2008 In this paper biharmonic maps between doubly warped product manifolds are studied. We show that the inclusion maps of Riemannian manifolds $B$ and $F$ into the doubly warped product $_{f}B\times_{b}F$ can not be proper biharmonic maps. Also we analyze the conditions for the biharmonicity of projections $_{f}B\times_{b}F\to B$ and $_{f}B\times_{b}F\to F$
Selcen Yüksel Perktaş, Erol Kılıç
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On Doubly Warped Product Finsler Manifolds [PDF]
Nonlinear Analysis: Real World Applications, 2011 In this paper, we introduce horizontal and vertical warped product Finsler manifold. We prove that every C-reducible or proper Berwaldian doubly warped product Finsler manifold is Riemannian. Then, we find the relation between Riemmanian curvatures of doubly warped product Finsler manifold and its components, and consider the cases that this manifold ...
E. Peyghan, Akbar Tayebi
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Anisotropy universe in doubly warped product scheme [PDF]
, 2014 arXiv admin note: substantial text overlap with arXiv:1306.3020; and text overlap with arXiv:gr-qc/0410090 by other ...
Jaedong Choi
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An Obata-type characterization of doubly-warped product K\''ahler manifolds [PDF]
, 2020 We give a characterization à la Obata for certain families of Kähler manifolds. These results are in the same line as other extensions of the well-known Obata rigidity theorem from [16], like for instance the generalizations in [17, 18]. Moreover, we give a complete description of the so-called Kähler doubly-warped product structures whose underlying ...
Nicolas Ginoux +3 more
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Doubly warped products with harmonic Weyl conformal curvature tensor [PDF]
Colloquium Mathematicum, 1994 Let \((\overline M, \overline g)\) and \(({\overset {*} M}, {\overset {*} g})\) be Riemannian manifolds and let \(f:\overline M \to \mathbb{R}^ +\) and \(h : {\overset {*} M} \to \mathbb{R}^ +\) be positive \(C^ \infty\)- functions. The Riemannian manifold \(M = {\overset {*} M} \times M\) furnished with the metric tensor \(g = (h \circ \sigma)^ 2 \pi^*
Andrzej Gębarowski
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Doubly warped product submanifolds of (κ,μ)-contact metric manifolds [PDF]
Annales Polonici Mathematici, 2011 We establish sharp inequalities for C-totally real doubly warped product submanifolds in (kappa, mu)-contact space forms and in non-Sasakian (kappa, mu)-contact metric manifolds.
Sibel Sular, Cıhan Özgür
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