Results 1 to 10 of about 1,379,599 (244)
Spectral decomposition with monotonic spectral resolvents [PDF]
Transactions of the American Mathematical Society, 1983 The spectral decomposition problem of a Banach space over the complex field entails two kinds of constructive elements: (1) the open sets of the field and (2) the invariant subspaces (under a given linear operator) of the Banach space. The correlation between these two structures, in the framework of a spectral decomposition, is the spectral resolvent ...
Erdelyi, Ivan, Wang, Shengwang
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Chordal decomposition for spectral coarsening [PDF]
ACM Transactions on Graphics, 2020 We introduce a novel solver to significantly reduce the size of a geometric operator while preserving its spectral properties at the lowest frequencies. We use chordal decomposition to formulate a convex optimization problem which allows the user to control the operator sparsity pattern.
David Levin +2 more
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Spectral Tensor-Train Decomposition [PDF]
SIAM Journal on Scientific Computing, 2016 The accurate approximation of high-dimensional functions is an essential task in uncertainty quantification and many other fields. We propose a new function approximation scheme based on a spectral extension of the tensor-train (TT) decomposition. We first define a functional version of the TT decomposition and analyze its properties. We obtain results
Daniele Bigoni +2 more
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Egyptian Journal of Petroleum, 2016 This paper presents a case study of spectral decomposition of seismic data and how it aids in seismic data interpretation. It is also known as time–frequency analysis where non-stationary signals in time/space are from time/space domain to time/space vs.
Adel A.A. Othman, M. Fathy, Ali Maher
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Spectral Decomposition of X-ray Absorption Spectroscopy Datasets: Methods and Applications
Crystals, 2020 X-ray absorption spectroscopy (XAS) today represents a widespread and powerful technique, able to monitor complex systems under in situ and operando conditions, while external variables, such us sampling time, sample temperature or even beam position ...
Andrea Martini, Elisa Borfecchia
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Color Restoration of RGBN Multispectral Filter Array Sensor Images Based on Spectral Decomposition
Sensors, 2016 A multispectral filter array (MSFA) image sensor with red, green, blue and near-infrared (NIR) filters is useful for various imaging applications with the advantages that it obtains color information and NIR information simultaneously.
Chulhee Park, Moon Gi Kang
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Multilevel Spectral Domain Decomposition [PDF]
SIAM Journal on Scientific Computing, 2022 25 ...
Peter Bastian +3 more
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Journal of Engineering and Applied Science, 2022 In the Niger Delta, the Jay Field offshore structural model and seismic attribute analysis were carried out to enhance prospect evaluation and mitigate risk in field development operations, especially in regions with few wells and poor seismic data ...
Rotimi P. Akinwale +2 more
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Remote Sensing, 2022 Efforts to monitor terrestrial decomposition dynamics at broad spatial scales are hampered by the lack of a cost-effective and scalable means to track the decomposition process.
Cameron Proctor +4 more
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Visualization and selection of Dynamic Mode Decomposition components for unsteady flow
Visual Informatics, 2021 Dynamic Mode Decomposition (DMD) is a data-driven and model-free decomposition technique. It is suitable for revealing spatio-temporal features of both numerically and experimentally acquired data.
T. Krake +4 more
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