Results 1 to 10 of about 599,677 (299)
Lagrangians and integrability for additive fourth-order difference equations [PDF]
The European Physical Journal Plus, 2020 We use a recently found method to characterise all the invertible fourth-order difference equations linear in the extremal values based on the existence of a discrete Lagrangian.
Giorgio Gubbiotti
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On convergence of solutions to difference equations with additive perturbations [PDF]
Journal of Difference Equations and Applications, 2016 Various types of stabilizing controls lead to a deterministic difference equation with the following property: once the initial value is positive, the solution tends to the unique positive equilibrium.
Elena Braverman, Alexandra Rodkina
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Is the non-additive kinetic potential always equal to the difference of effective potentials from inverting the Kohn–Sham equation? [PDF]
The Journal of Chemical Physics, 2022 The relation used frequently in the literature according to which the non-additive kinetic potential which is a functional depending on a pair of electron densities is equal (up to a constant) to the difference of two potentials obtained from inverting ...
Tomasz A. Wesołowski
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Some representations of the general solution to a difference equation of additive type [PDF]
Advances in Difference Equations, 2019 The general solution to the difference equation xn+1=axnxn−1xn−2+bxn−1xn−2+cxn−2+dxnxn−1xn−2,n∈N0,$$x_{n+1}=\frac {ax_{n}x_{n-1}x_{n-2}+bx_{n-1}x_{n-2}+cx_{n-2}+d}{x_{n}x_{n-1}x_{n-2}},\quad n\in\mathbb{N}_{0}, $$ where a,b,c∈C$a, b, c\in\mathbb{C}$, d∈
Stevo Stević
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The Padé interpolation method applied to additive difference Painlevé equations [PDF]
Letters in Mathematical Physics, 2021 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hidehito Nagao
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Bulletin of Mathematical Sciences, 2021 This paper deals with the asymptotic behavior of solutions to non-autonomous, fractional, stochastic p-Laplacian equations driven by additive white noise and random terms defined on the unbounded domain ℝN.
Renhai Wang, Bixiang Wang
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Comparing methods for glomerular filtration rate estimation [PDF]
Journal of Clinical and Translational ScienceBackground: The glomerular filtration rate (GFR), estimated from serum creatinine (SCr), is widely used in clinical practice for kidney function assessment, but SCr-based equations are limited by non-GFR determinants and may introduce inaccuracies across
Xiaoqian Zhu +7 more
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Fractal and Fractional, 2021 Numerical methods for spectral space-fractional elliptic equations are studied. The boundary value problem is defined in a bounded domain of general geometry, Ω⊂Rd, d∈{1,2,3}. Assuming that the finite difference method (FDM) or the finite element method (
Stanislav Harizanov +4 more
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Stability of Equilibrium Points of Fractional Difference Equations with Stochastic Perturbations
Advances in Difference Equations, 2008 It is supposed that the fractional difference equation xn+1=(μ+∑j=0kajxn−j)/(λ+∑j=0kbjxn−j), n=0,1,…, has an equilibrium point x^ and is exposed to additive stochastic perturbations type of Ã(xn−x^)ξn+1 that are ...
Beatrice Paternoster, Leonid Shaikhet
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The Capacity Gains of Gaussian Channels with Unstable Versus Stable Autoregressive Noise [PDF]
EntropyIn this paper, we consider Cover’s and Pombra’s formulation of feedback capacity of additive Gaussian noise (AGN) channels, with jointly Gaussian nonstationary and nonergodic noise.
Charalambos D. Charalambous +3 more
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