Results 91 to 100 of about 4,268 (287)
What happens, if in the synthesis of flat silver platelets, the slow deposition of silver along twinning faults is disturbed by the addition of a nobler metal? We have looked into it and found a way to fine‐tune the metal deposition in lateral and vertical direction.
Jonas Kluitmann +3 more
wiley +1 more source
THE SPECTRAL GEOMETRY OF EINSTEIN MANIFOLDS WITH BOUNDARY [PDF]
Let (M,g) be a compact Einstein manifold with smooth boundary. We consider the spectrum of the p form valued Laplacian with respect to a suitable boundary condition. We show that certain geometric properties of the boundary may be spectrally characterized in terms of this data where we fix the Einstein constant.
openaire +2 more sources
High atmospheric pressure (120 kPa) in deep underground counteracts humidity‐induced physiological stress in plants, stabilizing water balance and enhancing antioxidative defenses. This synergy boosts biomass despite elevated humidity, demonstrating sustainable deep underground agriculture potential under climate uncertainty.
Yuxin He +6 more
wiley +1 more source
Bundle Construction of Einstein Manifolds [PDF]
The aim of this thesis is to construct some smooth Einstein manifolds with nonzero Einstein constant, and then to investigate their topological and geometric properties.
Chen, Dezhong
core
On quasi-Einstein Weyl manifolds
In this work, first, we define quasi-Einstein Weyl manifold which is one of the generalization of Einstein–Weyl manifold. Then, we prove its existence and construct an example.
İlhan Gül, Elif Özkara Canfes
core +1 more source
Einstein-Hermitian connections on polystable principal bundles over a compact Kahler manifold
Given a compact Kahler manifold M and a connected reductive algebraic group G over C, a principal G-bundle over M admits an Einstein-Hermitian connection if and only if the principal bundle is polystable.
Anchouche, Boudjemaa, Biswas, Indranil
core +1 more source
Super Quasi-Einstein Warped Products Manifolds with Respect to Affine Connections
In this paper, we investigate warped products on super quasi-Einstein manifolds under affine connections. We explore their fundamental properties, establish conditions for their existence, and prove that these manifolds can also be nearly quasi-Einstein ...
Mohd Vasiulla +3 more
doaj +1 more source
On Calabi's Inhomogeneous Einstein-Kaehler Manifolds [PDF]
We use some information on Lie groups to replace a long computation of Calabi, proving that certain complete Einstein-Kaehler manifolds are not locally homogeneous, and finding their isometry groups.
openaire +2 more sources
The regulation of stem cell fate and its application in neural regeneration
Regulating stem cell fate is crucial for neural regeneration. This review summarizes key physical, biological, and chemical strategies and their applications in repairing nerve injuries, providing new insights for regenerative medicine. Abstract Regulating the fate of stem cells (SCs) is a key technical problem in the field of regenerative medicine and
Yuexin He +3 more
wiley +1 more source
Sphere Theorems for σk-Einstein Manifolds
A problem that geometers have always been concerned with is when a closed manifold is isometric to a round sphere. A classical result shows that a closed locally conformally flat Einstein manifold is always isometric to a quotient of a round sphere.
Jingyang Zhong, Xinran Mu
doaj +1 more source

