Results 11 to 20 of about 5,816,652 (357)
Geometric Inequalities for Warped Products in Riemannian Manifolds
Mathematics, 2021 Warped products are the most natural and fruitful generalization of Riemannian products. Such products play very important roles in differential geometry and in general relativity.
Bang-Yen Chen, Adara M. Blaga
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Sequential Warped Products and Their Applications
International Electronic Journal of Geometry, 2021 In this paper, we study the sequential warped product manifolds, which are the natural generalizations of singly warped products. Many spacetime models that characterize the universe and the solutions of Einstein's field equations are known to have this ...
Sinem GÜLER, Guler, Sinem
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Differential Geometry and Its Applications, 2001 In this paper we study geodesic completeness of Riemannian doubly warped products and Lorentzian doubly warped products. We give necessary conditions for generalized Robertson–Walker space-times with doubly warped product spacial parts to be globally ...
Bulent Ünal
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Pseudo-projective Tensor on Sequential Warped Products [PDF]
Mediterranean Journal of Mathematics, 2023 The main objective of this paper is to study pseudo-projective tensor on sequential warped products and then to obtain necessary and sufficient conditions for a sequential warped product to be pseudo-projectively flat.
Sinem GÜLER, Bulent Ünal
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A Geometric Obstruction for CR-Slant Warped Products in a Nearly Cosymplectic Manifold
Mathematics, 2020 In the early 20th century, B.-Y. Chen introduced the concept of CR-warped products and obtained several fundamental results, such as inequality for the length of second fundamental form. In this paper, we obtain B.-Y.
Siraj Uddin, M. Z. Ullah
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Multiply Warped Products with a Semisymmetric Metric Connection [PDF]
Abstract and Applied Analysis, 2014 We study the Einstein multiply warped products with a semisymmetric metric connection and the multiply warped products with a semisymmetric metric connection with constant scalar curvature, and we apply our results to generalized Robertson-Walker space ...
Yong Wang
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Chen optimal inequalities of CR-warped products of generalized Sasakian space form
Journal of Taibah University for Science, 2020 Our main objective of this paper is to derive the relationship between the main extrinsic invariant, and the contact CR δ-invariant (new intrinsic invariant) on a generic submanifold in trans-Sasakian generalized Sasakian space forms.
Aliya Naaz Siddiqui +2 more
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Inverse curvature flows in Riemannian warped products [PDF]
Journal of Functional Analysis, 2019 The long-time existence and umbilicity estimates for compact, graphical solutions to expanding curvature flows are deduced in Riemannian warped products of a real interval with a compact fibre.
Scheuer, Julian
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A DDVV INEQUALITY FOR SUBMANIFOLDS OF WARPED PRODUCTS [PDF]
Bulletin of the Australian Mathematical Society, 2017 À paraître dans Bulletin of the Australian Mathematical SocietyInternational audienceWe prove a DDVV inequality for submanifolds of warped products of the form I ×a M n (c) where I is an interval and M n (c) a real space form of curvature c.
Roth, J., Roth, Julien
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Warped products with special Riemannian curvature
Sociedade Brasileira De Matematica Boletim, Nova Serie, 2001 We study the geometry of particular classes of Riemannian manifolds obtained as warped products. We focus on the case of constant curvature which is completely classified and on the Einstein case.
M Bertola +2 more
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