Results 21 to 30 of about 163 (136)
Geometry of Warped Product CR and Semi-Slant Submanifolds in Quasi-Para-Sasakian Manifolds
International Journal of Analysis and Applications, 2022 In the present paper we study the existence or non-existence of warped product semi-slant submanifolds in quasi-para-Sasakian manifolds and prove that there are no proper warped product semi-slant submanifolds in a quasi-para-Sasakian manifold such that ...
Shamsur Rahman +2 more
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On geometry of warped product semi invariant submanifolds of nearly (ε, δ)-trans sasakian manifold with a certain connection [PDF]
Journal of Hyperstructures, 2023 In this paper, we study the geometry of warped product semi invariant submanifold of a nearly (ε, δ)-trans-Sasakianmanifold M with a quarter symmetric non metric connection. We see that warped product of the typeE⊥×yET is a usual Riemannian product of E⊥
Shamsur Rahman +2 more
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Curvature Estimates for Submanifolds in Warped Products [PDF]
Results in Mathematics, 2011 We give estimates on the intrinsic and the extrinsic curvature of manifolds that are isometrically immersed as cylindrically bounded submanifolds of warped products. We also address extensions of the results in the case of submanifolds of the total space of a Riemannian submersion.
Alías, L. J. +3 more
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WIREs Computational Statistics, Volume 15, Issue 5, September/October 2023., 2023 The graph illustrates brain changes in regional metabolic activity and connectivity in a cohort of mildly cognitively impaired patients. The depicted changes reflect patterns at 24 months relative to baseline and are determined by Bayesian Spatial Modeling of activation and connectivity (BSMac).
Daniel F. Drake +4 more
wiley +1 more source
Nonnegative scalar curvature on manifolds with at least two ends
Journal of Topology, Volume 16, Issue 3, Page 855-876, September 2023., 2023 Abstract Let M$M$ be an orientable connected n$n$‐dimensional manifold with n∈{6,7}$n\in \lbrace 6,7\rbrace$ and let Y⊂M$Y\subset M$ be a two‐sided closed connected incompressible hypersurface that does not admit a metric of positive scalar curvature (abbreviated by psc). Moreover, suppose that the universal covers of M$M$ and Y$Y$ are either both spin
Simone Cecchini +2 more
wiley +1 more source
On a certain type of warped-twisted product submanifolds
Turkish Journal of Mathematics, 2022 The authors investigate a certain type of warped-twisted products which are warped product hemislant submanifolds in globally conformal Kähler manifolds. They obtain necessary and sufficient conditions for such submanifolds to be a twisted product, a base conformal warped product or a direct product submanifold.
Gerdan Aydin, Sibel, Tastan, Hakan Mete
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Pointwise Hemislant Submanifolds in a Complex Space Form
Journal of Mathematics, Volume 2023, Issue 1, 2023., 2023 In this paper, pointwise hemislant submanifolds were introduced in a Kahler manifold. The integrability conditions for the distributions which are involved in the definition of a pointwise hemislant submanifold were investigated. In addition, the necessary and sufficient conditions were given for a pointwise hemislant submanifold to be a pointwise ...
Noura Alhouiti, Antonio Masiello
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Review of the techniques used in motor‐cognitive human‐robot skill transfer
Cognitive Computation and Systems, Volume 3, Issue 3, Page 229-252, September 2021., 2021 Abstract A conventional robot programming method extensively limits the reusability of skills in the developmental aspect. Engineers programme a robot in a targeted manner for the realisation of predefined skills. The low reusability of general‐purpose robot skills is mainly reflected in inability in novel and complex scenarios.
Yuan Guan, Ning Wang, Chenguang Yang
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Warped Product Submanifolds in Locally Golden Riemannian Manifolds with a Slant Factor
Mathematics, 2021 In the present paper, we study some properties of warped product pointwise semi-slant and hemi-slant submanifolds in Golden Riemannian manifolds, and we construct examples in Euclidean spaces.
Cristina E. Hretcanu, Adara M. Blaga
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Examples of noncompact nonpositively curved manifolds
Bulletin of the London Mathematical Society, Volume 53, Issue 4, Page 1061-1071, August 2021., 2021 Abstract We give a simple construction of new, complete, finite volume manifolds M of bounded, nonpositive curvature. These manifolds have ends that look like a mixture of locally symmetric ends of different ranks and their fundamental groups are not duality groups.
Grigori Avramidi +1 more
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