Results 31 to 40 of about 1,582,878 (315)

Asymptotic behavior of solutions of discrete Volterra equations [PDF]

open access: yesOpuscula Mathematica, 2016
We consider the nonlinear discrete Volterra equations of non-convolution type \[\Delta^m x_n=b_n+\sum\limits_{i=1}^{n}K(n,i)f\left(i,x_i\right), \quad n\geq 1.\] We present sufficient conditions for the existence of solutions with prescribed asymptotic ...
Janusz Migda, Małgorzata Migda
doaj   +1 more source

Convolution of multifractals and the local magnetization in a random field Ising chain

open access: yes, 2001
The local magnetization in the one-dimensional random-field Ising model is essentially the sum of two effective fields with multifractal probability measure. The probability measure of the local magnetization is thus the convolution of two multifractals.
Barnes C   +31 more
core   +3 more sources

Bernoulli Polynomials and Convolution Sums [PDF]

open access: yesBritish Journal of Mathematics & Computer Science, 2014
In this paper, we study the summations ∑ (a,b,c)∈N a+b+c=n (f(a+ b) + f(b+ c) + f(c+ a)) and ∑ (a,b,c,d)∈N a+b+c+d=n (f(a+ b+ c) + f(b+ c+ d) + f(c+ d+ a)). Especially, for the first summation we obtain some relations related to Bernoulli and Euler polynomials.
openaire   +1 more source

Analytic Solution of Integral Equation Involving Spheroidal Wave Functions of Three Variables. [PDF]

open access: yesKirkuk Journal of Science, 2012
In this paper Laplace transform and convolution theorem are used to solve integral equation involving spheroidal wave functions(S.W.F.) of 3-variables of the form where are the spheroidal wave function:- which represents the function ...
Qumri H. Hamko, Talhat I. Hassan
doaj   +1 more source

Deconvolved Fractional Fourier Domain Beamforming for Linear Frequency Modulation Signals

open access: yesSensors, 2023
To estimate the direction of arrival (DOA) of a linear frequency modulation (LFM) signal in a low signal-to-noise ratio (SNR) hydroacoustic environment by a small aperture array, a novel deconvolved beamforming method based on fractional Fourier domain ...
Zhuoran Liu   +3 more
doaj   +1 more source

Deeply Virtual Compton Scattering on Spin-1 Nuclei [PDF]

open access: yes, 2002
We consider the Generalized Parton Distributions for spin-1 nuclei in general and on the deuteron in particular. We use the impulse approximation to obtain a convolution model for them.
Airapetian   +22 more
core   +3 more sources

CONVOLUTION SUM OF RAMANUJAN'S SUM

open access: yes, 2022
This article is the result of calculating the convolution of Ramanujan's sum and natural number multiplied. Among these results, special values are expressed by Euler and Bernoulli functions.
Hwan Jo, Gye   +2 more
openaire   +2 more sources

Subexponential Solutions of Linear Volterra Difference Equations

open access: yesNonautonomous Dynamical Systems, 2015
We study the asymptotic behavior of the solutions of a scalar convolution sum-difference equation. The rate of convergence of the solution is found by determining the asymptotic behavior of the solution of the transient renewal equation.
Bohner Martin, Sultana Nasrin
doaj   +1 more source

Bisection of Bounded Treewidth Graphs by Convolutions [PDF]

open access: yes, 2019
In the Bisection problem, we are given as input an edge-weighted graph G. The task is to find a partition of V(G) into two parts A and B such that ||A| - |B||
Eiben, Eduard   +2 more
core   +2 more sources

Representation of spectra of algebras of block-symmetric analytic functions of bounded type

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
The paper contains a description of symmetric convolution of the algebra of block-symmetric analytic functions of bounded type on $\ell_{1}$-sum of the space $\mathbb{C}^{2}.$ We show that the specrum of such algebra does not coincide of point evaluation
V.V. Kravtsiv, A.V. Zagorodnyuk
doaj   +1 more source

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