Results 31 to 40 of about 47,396,763 (332)
On the Compressive Spectral Method
Multiscale Modeling & Simulation, 2014 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Alan Mackey +2 more
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On the theory of the known inverse problems for the heat transfer equation
Учёные записки Казанского университета: Серия Физико-математические науки, 2019 The inverse problems for finding the initial condition and the right-hand side were studied for the heat transfer equation. A solution of the initial boundary value problem for the inhomogeneous heat transfer equation with sufficient conditions for the ...
K.B. Sabitov, A.R. Zaynullov
doaj +1 more source
Efficient enhancements in spectral domain method to speed up open planar circuit analysis [PDF]
, 1998 The spectral domain method is a very fast and powerful technique to analyse planar microwave circuits. Available techniques for simulating the excitation of open planar microwave circuits are not very effective at relatively low frequencies.
Railton, CJ +3 more
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Modern spectral analysis in HF radar remote sensing. [PDF]
, 1998 High-Frequency (HF) radar systems are currently used to collect wave data. By applying spectral analysis methods, such as the Fast Fourier Transform (FFT) method, to the radar backscatter from the ocean surface, the so-called Doppler spectrum is ...
Vizinho, A., Vizinho, A
core +5 more sources
Mixed Jacobi-Fourier spectral method for Fisher equation
Mathematical Modelling and Analysis, 2018 In this paper, we propose a mixed Jacobi-Fourier spectral method for solving the Fisher equation in a disc. Some mixed Jacobi-Fourier approximation results are established, which play important roles in numerical simulation of various problems defined in ...
Yujian Jiao +3 more
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A SPECTRAL METHOD FOR DECONVOLVING A DENSITY [PDF]
Econometric Theory, 2010 We propose a new estimator for the density of a random variable observed with an additive measurement error. This estimator is based on the spectral decomposition of the convolution operator, which is compact for an appropriate choice of reference spaces.
Carrasco, Marine, Florens, Jean-Pierre
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Eliminating Nonuniform Smearing and Suppressing the Gibbs Effect on Reconstructed Images
Computers, 2020 In this work, the problem of eliminating a nonuniform rectilinear smearing of an image is considered, using a mathematical- and computer-based approach. An example of such a problem is a picture of several cars, moving with different speeds, taken with a
Valery Sizikov +2 more
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Journal of Taibah University for Science, 2023 The present work investigates quadratic convection on magnetized viscous fluid flow on a circular elastic surface susceptible to Rosseland nonlinear thermal radiation and the nonlinear Boussinesq approximation.
Lijun Zhang, Nafisa Tariq, M. M. Bhatti
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Analytical-Numerical Solution for a Third Order Space-time Conformable Fractional PDE with Mixed Derivative by Spectral and Asymptotic Methods [PDF]
Sahand Communications in Mathematical Analysis, 2023 Initial-boundary value problems including space-time fractional PDEs have been used to model a wide range of problems in physics and engineering fields. In this paper, a non-self adjoint initial boundary value problem containing a third order fractional ...
Mohammad Jahanshahi, Reza Danaei
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A Fast Spectral Method for the Boltzmann Collision Operator with General Collision Kernels [PDF]
SIAM Journal on Scientific Computing, 2016 We propose a simple fast spectral method for the Boltzmann collision operator with general collision kernels. In contrast to the direct spectral method \cite{PR00, GT09} which requires $O(N^6)$ memory to store precomputed weights and has $O(N^6 ...
I. Gamba, J. Haack, C. Hauck, Jingwei Hu
semanticscholar +1 more source