Results 1 to 10 of about 123,317 (165)
Spectral representation of cosmological correlators
Journal of High Energy PhysicsCosmological correlation functions are significantly more complex than their flat-space analogues, such as tree-level scattering amplitudes. While these amplitudes have simple analytic structure and clear factorisation properties, cosmological ...
Denis Werth
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Remote Sensing, 2017 In this paper, a new method is presented for spatial resolution enhancement of hyperspectral images (HSI) using spectral unmixing and a Bayesian sparse representation.
Elham Kordi Ghasrodashti +3 more
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Higher-Spin Currents, Operator Mixing and UV Asymptotics in Large-N QCD-like Theories
Universe, 2023 We extend to operator mixing—specifically, to higher-spin twist-2 operators—the asymptotic theorem on the ultraviolet asymptotics of the spectral representation of 2-point correlators of multiplicatively renormalizable operators in large-N confining QCD ...
Marco Bochicchio
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Spectral representation of stochastic integration operators [PDF]
MATEC Web of Conferences, 2022 The spectral representation for stochastic integration operators with respect to the Wiener process is proposed in the form of a composition of spectral characteristics used in the spectral form of mathematical description for control systems.
Rybakov Konstantin
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Spectral representations for a class of banded Jacobi-type matrices [PDF]
Opuscula Mathematica, 2014 We describe some spectral representations for a class of non-self-adjoint banded Jacobi-type matrices. Our results extend those obtained by P.B. Naïman for (two-sided infinite) periodic tridiagonal Jacobi matrices.
Ewelina Zalot, Witold Majdak
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A Spectrum Correction Method Based on Optimizing Turbulence Intensity
Applied Sciences, 2021 Based on the classical spectral representation method of simulating turbulent wind speed fluctuation, a harmonic superposition algorithm was introduced in detail to calculate the homogeneous turbulence wind field simulation in space. From the view of the
Wenwu Yi +5 more
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Dependence Modeling, 2021 The paper investigates the Hoeffding–Sobol decomposition of homogeneous co-survival functions. For this class, the Choquet representation is transferred to the terms of the functional decomposition, and in addition to their individual variances, or to ...
Mercadier Cécile, Ressel Paul
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Uncertainty Quantification and Simulation of Wind-Tunnel-Informed Stochastic Wind Loads
Wind, 2023 The simulation of stochastic wind loads is necessary for many applications in wind engineering. The proper-orthogonal-decomposition-(POD)-based spectral representation method is a popular approach used for this purpose, due to its computational ...
Thays G. A. Duarte +3 more
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Learning developmental mode dynamics from single-cell trajectories
eLife, 2021 Embryogenesis is a multiscale process during which developmental symmetry breaking transitions give rise to complex multicellular organisms. Recent advances in high-resolution live-cell microscopy provide unprecedented insights into the collective cell ...
Nicolas Romeo +3 more
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Modeling of Stochastic Wind Based on Operational Flight Data Using Karhunen–Loève Expansion Method
Sensors, 2020 Wind has a significant influence on the operational flight safety. To quantify the influence of the wind characteristics, a wind series generator is required in simulations.
Xiaolong Wang +3 more
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