Bakry–Émery Ricci Curvature Bounds for Doubly Warped Products of Weighted Spaces [PDF]
Journal of Geometric Analysis, 2022 Sajjad Lakzian
exaly +2 more sources
On doubly warped product submanifolds of generalized $$(\kappa ,\mu )$$ ( κ , μ ) -space forms [PDF]
Afrika Matematika, 2014 In this paper we establish a general inequality involving the Laplacian of the warping functions and the squared mean curvature of any doubly warped product isometrically immersed in a Riemannian manifold. Moreover, we obtain some geometric inequalities for C-totally real doubly warped product submanifolds of generalized $(\kappa,\mu)$-space forms.
Morteza Faghfouri, Narges Ghaffarzadeh
exaly +3 more sources
On conformally doubly warped product Finsler manifold [PDF]
Journal of the Egyptian Mathematical Society, 2019 AbstractThe aim of the present paper is to introduce the notion of conformally doubly warped product Finsler manifold (CDWPF). For such a Finsler manifold, the coefficients of Barthel connection and its curvature tensor are investigated. The coefficients of Cartan, Berwald, Hashiguchi and Chern (Rund) connections of CDWPF are calculated.
Soleiman, A., Abdelsalam, A. M.
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Warped-Twisted Product Semi-Slant Submanifolds
, 2022 We introduce the notion of warped-twisted product semi-slant submanifolds of the form f2MT?f1 M? with warping function f2 on M? and twisting function f1, where MT is a holomorphic and M?
Taştan, Hakan Mete +4 more
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Geophysical Monograph Series, Page 263-304., 2021 Exploring the links between Large Igneous Provinces and dramatic environmental impact
An emerging consensus suggests that Large Igneous Provinces (LIPs) and Silicic LIPs (SLIPs) are a significant driver of dramatic global environmental and biological changes, including mass extinctions.
Jessica H. Whiteside +3 more
wiley +1 more source
ON RICCI-PSEUDOSYMMETRIC DOUBLY WARPED PRODUCTS
Demonstratio Mathematica, 1996 In this paper doubly warped product manifolds that satisfy a curvature condition known as Ricci-pseudosymmetry are studied. Necessary and sufficient conditions for a doubly warped product to be Ricci-pseudosymmetric are stated. In the special case that the two factor manifolds of the doubly warped product are both Einstein manifolds, the author states ...
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Stability of Doubly Warped Product Spacetimes [PDF]
, 2009 Nonlinear stability for a class of doubly warped spacetimes is proved. The background spacetimes have negative Einstein factors. It shown that for dimension D≥11 there is a full parameter family of solutions to the vacuum Einstein equations which has Kasner-like singularity and Friedmann like asympotics in the future.
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AxiomsWe investigate Ricci–Bourguignon solitons on mixed doubly sequential warped product manifolds. Necessary and sufficient conditions for the existence of such solitons are established, and their implications for Einstein manifolds are analyzed.
Ayman Elsharkawy +3 more
doaj +1 more source
A general inequality for doubly warped product submanifolds [PDF]
, 2020 . In this paper, we consider doubly warped product manifolds and we establish a general inequality for doubly warped products isometrically immersed in arbitrary Riemannian manifolds.
Andreea Olteanu
core
Bamboo Medical Application: A State‐of‐the‐Art Review
Advanced Materials Technologies, EarlyView.This review presents a structured classification of bamboo's current use in healthcare. It organizes applications into medical textiles and medical devices, with further divisions based on function and level of invasiveness. It also examines material utilization based on bamboo's structural role, highlighting how it supports both protective and ...
Haymanot Beza Lamesgin +3 more
wiley +1 more source