Results 101 to 110 of about 182,921 (280)

On Quasistatistical F-Connections on the Anti-Kähler Manifolds

open access: yesJournal of Mathematics
The paper focuses on investigating a specific type of quasistatistical F-connections within the context of an anti-Kähler manifold. Initially, the paper establishes a connection between the Riemannian connection and the specialized quasistatistical F ...
Cagri Karaman   +3 more
doaj   +1 more source

Curvature tensors and covariant derivatives [PDF]

open access: yesAnnali di Matematica Pura ed Applicata, 1973
The problems considered here are of two types.(i) What are implications of vanishing k-th covariant derivatives of curvature tensors?(ii) Under what conditions on curvature tensors, does the k-th covariant derivative ∇kT=0 for a tensor T mean ∇T=0?
openaire   +1 more source

Infrared Nanocrystals for Space Application: Hardness to Irradiations

open access: yesAdvanced Functional Materials, EarlyView.
This article investigates infrared HgTe nanocrystals under X‐ray and ion irradiation, revealing remarkable radiation hardness. It uncovers distinct degradation mechanisms and shows that the nanomaterial outperforms integrated electronics. The results position colloidal nanocrystals as promising candidates for resilient space and harsh‐environment ...
Alexandre Neyret   +22 more
wiley   +1 more source

Cardiac‐Derived ECM Microspheres for Enhanced hiPSC‐CMs Maturation

open access: yesAdvanced Functional Materials, EarlyView.
Cardiac extracellular matrix microspheres derived from decellularized porcine heart provide a biomimetic 3D microenvironment for human induced pluripotent stem cell–derived cardiomyocytes (hiPSC‐CMs). This platform supports short‐ and long‐term culture, enhances structural organization, and promotes electrophysiological and functional maturation of ...
Jiazhu Xu   +9 more
wiley   +1 more source

The Impact of Quasi-Conformal Curvature Tensor on Warped Product Manifolds

open access: yesAxioms
This work investigates the effects on the factor manifolds of a singly warped product manifold resulting from the presence of a quasi-conformally flat, quasi-conformally symmetric, or divergence-free quasi-conformal curvature tensor.
Bang-Yen Chen   +4 more
doaj   +1 more source

Weakly Einstein curvature tensors

open access: yes
11 ...
Derdzinski, Andrzej   +2 more
openaire   +2 more sources

Stabilization of Miscible Aqueous Phases via Diffusion‐Controlled Multifunctional Nanoparticle‐Ligand Complexation

open access: yesAdvanced Functional Materials, EarlyView.
This study presents a versatile approach to harnessing miscible aqueous domains, enabling liquid‐in‐liquid compartmentalization using a barrier formed in situ rather than bulk immiscibility. The barrier forms upon the complexation of multifunctional nanoparticles and ligands at the contact boundary of aqueous phases.
Seyyed Alireza Hashemi   +7 more
wiley   +1 more source

Remark on the Calabi flow with bounded curvature

open access: yes, 2012
In this short note we prove that if the curvature tensor is uniformly bounded along the Calabi flow and the Mabuchi energy is proper, then the flow converges to a constant scalar curvature metric.Comment: 7 ...
Székelyhidi, Gábor
core  

Imaging of Biphoton States: Fundamentals and Applications

open access: yesAdvanced Functional Materials, EarlyView.
Quantum states of two photons exhibit a rich polarization and spatial structure, which provides a fundamental resource of strongly correlated and entangled states. This review analyzes the physics of these intriguing properties and explores the various techniques and technologies available to measure them, including the state of the art of their ...
Alessio D'Errico, Ebrahim Karimi
wiley   +1 more source

Orthogonally pinched curvature tensors and applications.

open access: yesMATHEMATICA SCANDINAVICA, 1991
In the present paper, an estimate for the curvature tensor of a Riemannian manifold \(M\) is considered which is weaker than a bound for the sectional curvature \(K\), but stronger than bounding the curvature on isotropic 2-planes [\textit{M. Micallef} and \textit{J. Moore}, Ann. Math., II. Ser. 127, 199-227 (1988; Zbl 0661.53027)].
openaire   +2 more sources

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