Results 61 to 70 of about 412,587 (240)
Ricci Curvature Inequalities for Skew CR-Warped Product Submanifolds in Complex Space Forms
Mathematics, 2020 The fundamental goal of this study was to achieve the Ricci curvature inequalities for a skew CR-warped product (SCR W-P) submanifold isometrically immersed in a complex space form (CSF) in the expressions of the squared norm of mean curvature vector and
Meraj Ali Khan, Ibrahim Aldayel
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Rigidity of Complete Gradient Shrinkers with Pointwise Pinching Riemannian Curvature
Advances in Mathematical Physics, 2021 Let Mn,g,f be a complete gradient shrinking Ricci soliton of dimension n≥3. In this paper, we study the rigidity of Mn,g,f with pointwise pinching curvature and obtain some rigidity results.
Yawei Chu, Dehe Li, Jundong Zhou
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Conformal η-Ricci solitons within the framework of indefinite Kenmotsu manifolds
AIMS Mathematics, 2022 The present paper is to deliberate the class of ϵ-Kenmotsu manifolds which admits conformal η-Ricci soliton. Here, we study some special types of Ricci tensor in connection with the conformal η-Ricci soliton of ϵ-Kenmotsu manifolds.
Yanlin Li +3 more
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Ricci curvature in dimension 2 [PDF]
Journal of the European Mathematical Society (Print), 2018 We prove that in two dimensions the synthetic notions of lower bounds on sectional and on Ricci curvature coincide.
A. Lytchak, Stephan Stadler
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Polymer Composites, EarlyView.Production process of amine‐modified silica aerogel reinforced aramid/epoxy composite (EAFS). ABSTRACT Due to its high pore size and low density, amine‐modified silica aerogel (XSA) is an excellent candidate for the secondary reinforcement material of polymer matrix composites.
Hasan Yavuz Ünal +4 more
wiley +1 more source
Coarse Ricci curvature for continuous-time Markov processes [PDF]
, 2012 The coarse Ricci curvature for Markov chains is generalized for continuous time. We show that a positive coarse Ricci curvature implies a contraction of the Markov process for the Wasserstein distance between probability measures.
Veysseire, Laurent
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Geometric and spectral estimates based on spectral Ricci curvature assumptions [PDF]
Journal für die Reine und Angewandte Mathematik, 2018 We obtain a Bonnet–Myers theorem under a spectral condition: a closed Riemannian ( M n , g ) {(M^{n},g)} manifold for which the lowest eigenvalue of the Ricci tensor ρ is such that the Schrödinger operator Δ + ( n - 2 ) ρ {\Delta+(n-2)\rho} is positive
G. Carron, Christian Rose
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Leveraging Quantum Annealing for Layout Optimization
Advanced Quantum Technologies, EarlyView.The authors address wind farm layout optimization by formulating it as a QUBO problem using the Jensen wake model. They compare quantum annealing, Gurobi, and QAOA, highlighting trade‐offs between solution quality and computational time. Results show that quantum annealing offers rapid, near‐optimal solutions, making it suitable for fast approximations
Luca Nigro +3 more
wiley +1 more source
AIMS MathematicsThe Ricci curvature in Finsler geometry naturally generalizes the Ricci curvature in Riemannian geometry. In this paper, we study the -th root metric with weakly isotropic scalar curvature and obtain that its scalar curvature must vanish.
Xiaoling Zhang, Cuiling Ma, Lili Zhao
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Stability of China’s Stock Market: Measure and Forecast by Ricci Curvature on Network
Complexity, 2023 The systemic stability of a stock market is one of the core issues in the financial field. The market can be regarded as a complex network whose nodes are stocks connected by edges that signify their correlation strength.
Xinyu Wang +4 more
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