Results 81 to 90 of about 409,873 (273)
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
semanticscholar +1 more source
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
doaj +1 more source
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
doaj +1 more source
On the weighted orthogonal Ricci curvature
Journal of Geometry and Physics, 2023 18 ...
Kyle Broder, Kai Tang
openaire +2 more sources
Ultrasound‐guided injections for the retrotrochanteric region: A cadaveric investigation
PM&R, EarlyView.Abstract Background Injections for the piriformis and triceps coxae tendons/bursae have not been described and validated. Objective To investigate the deep retrotrochanteric anatomy and validate an ultrasound (US)‐guided injection technique. Methods Fifteen sides of the pelvic half/lower limb of formalin‐fixed cadaveric specimens were dissected to ...
Kamal Mezian +6 more
wiley +1 more source
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
doaj +1 more source
Fortschritte der Physik, EarlyView.Abstract The unification of conformal and fuzzy gravities with internal interactions is based on the facts that i) the tangent group of a curved manifold and the manifold itself do not necessarily have the same dimensions and ii) both gravitational theories considered here have been formulated in a gauge theoretic way.
Gregory Patellis +3 more
wiley +1 more source
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
doaj +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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physica status solidi (a), EarlyView.The paper reports a feasibility study on organic field‐effect transistor in conditions mimicking those occurring in low Earth orbit, toward the future exploitation of organic electronics in new space economy applications, beyond standard optoelectronics.
Giulia Casula +4 more
wiley +1 more source