Results 71 to 80 of about 71,844 (227)
Advanced Intelligent Systems, Volume 7, Issue 3, March 2025.The use of image quality metrics in combination with machine learning enables automatic image quality assessment for fluorescence microscopy images. The method can be integrated into the experimental pipeline for optical microscopy and utilized to classify artifacts in experimental images and to build quality rankings with a reference‐free approach ...
Elena Corbetta, Thomas Bocklitz
wiley +1 more source
Ricci flow on K\"ahler-Einstein manifolds
, 2003 In our previous paper math.DG/0010008, we develop some new techniques in attacking the convergence problems for the K\"ahler Ricci flow. The one of main ideas is to find a set of new functionals on curvature tensors such that the Ricci flow is the ...
Chen, X. X., Tian, G.
core +1 more source
Inverse problems for Einstein manifolds
Inverse Problems & Imaging, 2009 Corrected ...
Colin Guillarmou, Antônio Sá Barreto
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Quaternionic contact Einstein manifolds [PDF]
Mathematical Research Letters, 2016 The main result is that the qc-scalar curvature of a seven dimensional quaternionic contact Einstein manifold is a constant. In addition, we characterize qc-Einstein structures with certain flat vertical connection and develop their local structure equations. Finally, regular qc-Ricci flat structures are shown to fibre over hyper-Kahler manifolds.
Ivan Minchev +2 more
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Precise Real‐Time Measurement of Liquid Viscosity Using Digital Video Data
Advanced Intelligent Systems, EarlyView.Frame‐by‐frame image similarity analysis is employed to obtain the viscosity of moving liquids in real time. The method allows for online implementation even in harsh environments, replacing complex and invasive experiments. Quantitative knowledge of liquid viscosity is of fundamental importance in many areas of materials synthesis and processing ...
Zhiwen Pan +7 more
wiley +1 more source
Rigidity of Weak Einstein-Randers Spaces [PDF]
Sahand Communications in Mathematical AnalysisThe Randers metrics are popular metrics similar to the Riemannian metrics, frequently used in physical and geometric studies. The weak Einstein-Finsler metrics are a natural generalization of the Einstein-Finsler metrics.
Behnaz Lajmiri +2 more
doaj +1 more source
Generalized Ricci solitons and Einstein metrics on weak K-contact manifolds
Communications in Analysis and Mechanics, 2023 We study so-called "weak" metric structures on a smooth manifold, which generalize the metric contact and $ K $-contact structures and allow a new look at the classical theory.
Vladimir Rovenski
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Einstein manifolds with nonnegative isotropic curvature are locally symmetric
, 2008 Let (M,g) be an Einstein manifold of dimension n \geq 4 with nonnegative isotropic curvature.
Brendle, S.
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Journal of the Association for Information Science and Technology, EarlyView.Abstract The term semantic primitives refers to a set of basic, atomic concepts from which all other (compound) concepts are constructed. It presupposes the principle of compositionality—the idea that complex items or expressions can be formed by combining simpler constituents.
Birger Hjørland
wiley +1 more source
Communications of the Korean Mathematical Society, 2008 The object of the present paper is to study some properties of a quasi Einstein manifold. A non-trivial concrete example of a quasi Einstein manifold is also given.
Biman Kanti De, Uday Chand De
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