Results 111 to 120 of about 409,873 (273)
η-Ricci Solitons on Kenmotsu 3-Manifolds
Annals of the West University of Timisoara: Mathematics and Computer Science, 2018 In the present paper we study η-Ricci solitons on Kenmotsu 3-manifolds. Moreover, we consider η-Ricci solitons on Kenmotsu 3-manifolds with Codazzi type of Ricci tensor and cyclic parallel Ricci tensor.
De Krishnendu, De Uday Chand
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, 2012 A Ricci surface is a Riemannian 2-manifold $(M,g)$ whose Gaussian curvature $K$ satisfies $K\Delta K+g(dK,dK)+4K^3=0$. Every minimal surface isometrically embedded in $\mathbb{R}^3$ is a Ricci surface of non-positive curvature.
Moroianu, Andrei, Moroianu, Sergiu
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On the equivalence of generalized Ricci curvatures
Proceedings of the American Mathematical SocietyWe prove the equivalence between the several notions of generalized Ricci curvature found in the literature. As an application, we characterize when the total generalized Ricci tensor is symmetric.
Cavalcanti, Gil r. +2 more
openaire +3 more sources
AI‐Driven Defect Engineering for Advanced Thermoelectric Materials
Advanced Materials, Volume 37, Issue 35, September 4, 2025.This review presents how AI accelerates the design of defect‐tuned thermoelectric materials. By integrating machine learning with high‐throughput data and physics‐informed representations, it enables efficient prediction of thermoelectric performance from complex defect landscapes.
Chu‐Liang Fu +9 more
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Communications on Pure and Applied Mathematics, Volume 78, Issue 9, Page 1656-1702, September 2025.Abstract Let (Mn,g)$(M^n,g)$ be a complete Riemannian manifold which is not isometric to Rn$\mathbb {R}^n$, has nonnegative Ricci curvature, Euclidean volume growth, and quadratic Riemann curvature decay. We prove that there exists a set G⊂(0,∞)$\mathcal {G}\subset (0,\infty)$ with density 1 at infinity such that for every V∈G$V\in \mathcal {G}$ there ...
Gioacchino Antonelli +2 more
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Mixed sectional-Ricci curvature obstructions on tori
, 2017 We establish new obstruction results to the existence of Riemannian metrics on tori satisfying mixed bounds on both their sectional and Ricci curvatures.
Kloeckner, Benoît, Sabourau, Stéphane
core
Anti‐Lung Cancer Effects and Related Mechanisms of α‐Caryophyllene In Vitro and In Vivo
Food Science &Nutrition, Volume 13, Issue 9, September 2025.α‐Caryophyllene is a natural condiment and flavoring additive. In this study, α‐caryophyllene suppressed the proliferation of A549 cells, induced apoptosis via the mitochondrial pathway, and restricted cell metastasis in vitro. Besides, it repressed the growth of A549 transplantation tumors by causing apoptosis of tumor cells in vivo.
Lu Jin +9 more
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Moderate Laryngeal Dysplasia in the Context of Classification Systems and Clinical Decision Making
The Laryngoscope, Volume 135, Issue 9, Page 3296-3305, September 2025.There is still an ongoing debate about the classification of laryngeal dysplasia. In a large retrospective analysis of 392 patients, the progression of dysplasia and the risk of a de novo occurrence of invasive carcinoma were evaluated. Here especially the high rate of occurrence of invasive carcinoma in the group of moderate dysplasia with 44% is of ...
Flurin Mueller‐Diesing +11 more
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Charting cellular differentiation trajectories with Ricci flow
Nature CommunicationsComplex biological processes, such as cellular differentiation, require intricate rewiring of intra-cellular signalling networks. Previous characterisations revealed a raised network entropy underlies less differentiated and malignant cell states.
Anthony Baptista +2 more
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Қарағанды университетінің хабаршысы. Математика сериясыIn the present paper sets related to invariant Riemannian metrics of positive sectional and (or) Ricci curvature on generalized Wallach spaces are considered.
N.A. Abiev
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