Results 11 to 20 of about 36,200 (257)
The Padé interpolation method applied to additive difference Painlevé equations [PDF]
Letters in Mathematical Physics, 2021 We study Padé interpolation problems on an additive grid, related to additive difference ($d$-) Painlevé equations of type $E_7^{(1)}$, $E_6^{(1)}$, $D_4^{(1)}$ and $A_3^{(1)}$. By choosing suitable Padé problems, we can derive time evolution equations, scalar Lax pairs of contiguous type and determinant formulae of special solutions given in terms of ...
Hidehito Nagao
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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.
Gubbiotti G., Giorgio Gubbiotti
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On convergence of solutions to difference equations with additive perturbations [PDF]
Journal of Difference Equations and Applications, 2016 22 pages, 4 figures, to appear in Journal of Difference Equations and ...
Elena Braverman, Alexandra Rodkina
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A system of additive functional equations in complex Banach algebras [PDF]
Demonstratio Mathematica, 2023 In this article, we solve the system of additive functional equations: fx y gx gy gx y f y x fx 2 , 2 4 ⎧ ⎨ ⎩ ( ) () () ( ) ( ) () +− = +− −= and prove the Hyers-Ulam stability of the system of additive functional equations in complex Banach
Mehdi Dehghanian +2 more
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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 Adam Wesolowski +1 more
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SIAM Journal on Numerical Analysis, 2002 This paper is concerned with the numerical approximation of some linear stochastic partial differential equations with additive noises. A special representation of the noise is considered, and it is compared with general representations of noises in the ...
Qiang Du
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Exponential dichotomy for noninvertible linear difference equations [PDF]
, 2021 In this article we study exponential dichotomies for noninvertible linear difference equations in finite dimensions. After giving the definition, we study the extent to which the projection P(k) in a dichotomy is unique.
Battelli, F., Franca, M., Palmer, K. J.
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Simultaneous Additive Equations: Repeated and Differing Degrees [PDF]
Canadian Journal of Mathematics, 2017 Abstract We obtain bounds for the number of variables required to establish Hasse principles, both for the existence of solutions and for asymptotic formulæ, for systems of additive equations containing forms of differing degree but also multiple forms of like degree.
Brandes, Julia, Parsell, Scott T.
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Intuitionistic fuzzy stability results of additive functional equation by two different approaches
Journal of Physics: Conference Series, 2021 Abstract In this current work, we examine the Hyers-Ulam(H-U) stability results for a finite variable additive functional equation (Ref.[6]) in Intuitionistic Fuzzy Normed space(IFN-space) is discussed by means of direct and fixed point methods.
K Tamilvanan +4 more
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Stability of Equilibrium Points of Fractional Difference Equations with Stochastic Perturbations [PDF]
, 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 ...
Paternoster Beatrice +5 more
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