Results 11 to 20 of about 156 (59)

Entire solutions of two certain Fermat-type ordinary differential equations

open access: yesOpen Mathematics, 2023
In this article, we investigate the precise expression forms of entire solutions for two certain Fermat-type ordinary differential equations: (a0f+a1f′)2+(a0f+a2f′)2=p{\left({a}_{0}f+{a}_{1}{f}^{^{\prime} })}^{2}+{\left({a}_{0}f+{a}_{2}{f}^{^{\prime} })}^
Hu Binbin, Yang Liu
doaj   +1 more source

A class of functional equations associated with almost periodic functions [PDF]

open access: yes, 2021
In this paper we will get a class of functional equations involving a countable set of terms, summed by the well known Bochner–Fejér summation procedure, which are closely associated with the set of almost periodic functions.
Sepulcre, Juan Matias, Vidal, Tomás
core   +1 more source

Alienation of Drygas’ and Cauchy’s Functional Equations

open access: yesAnnales Mathematicae Silesianae, 2021
Inspired by the papers [2, 10] we will study, on 2-divisible groups that need not be abelian, the alienation problem between Drygas’ and the exponential Cauchy functional equations, which is expressed by the equation f(x+y)+g(x+y)g(x-y)=f(x)f(y)+2g(x)+g ...
Aissi Youssef   +2 more
doaj   +1 more source

Meromorphic solutions of certain nonlinear difference equations

open access: yesOpen Mathematics, 2020
This paper focuses on finite-order meromorphic solutions of nonlinear difference equation fn(z)+q(z)eQ(z)Δcf(z)=p(z){f}^{n}(z)+q(z){e}^{Q(z)}{\text{Δ}}_{c}f(z)=p(z), where p,q,Qp,q,Q are polynomials, n≥2n\ge 2 is an integer, and Δcf{\text{Δ}
Liu Huifang, Mao Zhiqiang, Zheng Dan
doaj   +1 more source

Vibration of Clamped Visco‐Elastic Rectangular Plate with Parabolic Thickness Variations

open access: yesShock and Vibration, Volume 15, Issue 6, Page 713-723, 2008., 2008
Most of the machines and engineering structures experience vibration and their design generally requires consideration for their dynamic behavior. Due to this, the study of vibration, as it deals with the vibratory behavior of bodies, is acquiring increasingly importance in several engineering applications, nuclear reactor technology and aeronautical ...
A.K. Gupta, Anupam Khanna
wiley   +1 more source

Sums of an entire function in certain weighted L2-spaces [PDF]

open access: yes, 2003
We consider the functional equation f(z+σ)−f(z) = g(z) where σ is a complex number, f and g are entire functions of a complex variable z, with growth conditions.
Brive, Bruno
core   +2 more sources

On Cauchy‐type functional equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 2004, Issue 16, Page 847-859, 2004., 2004
Let G be a Hausdorff topological locally compact group. Let M(G) denote the Banach algebra of all complex and bounded measures on G. For all integers n ≥ 1 and all μ ∈ M(G), we consider the functional equations ∫Gf(xty)dμ(t)=∑i=1ngi(x)hi(y), x, y ∈ G, where the functions f, {gi}, {hi}: G → ℂ to be determined are bounded and continuous functions on G ...
Elqorachi Elhoucien, Mohamed Akkouchi
wiley   +1 more source

Matrix method for solving linear complex vector functional equations

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 29, Issue 4, Page 217-238, 2002., 2002
We give a new matrix method for solving both homogeneous and nonhomogeneous linear complex vector functional equations with constant complex coefficients.
Ice B. Risteski
wiley   +1 more source

A New Class of Quasicyclic Complex Vector Functional Equations [PDF]

open access: yes, 2008
For the first time in the literature a quasicyclic complex vector functional equation is introduced in the present paper. By a matrix method the general quasicyclic complex vector functional equation is solved, as well as its particular case for n = 3 ...
Risteski, Ice B.
core   +1 more source

The correlation between the convergence of subdivision processes and solvability of refinement equations. [PDF]

open access: yes, 2001
We consider a univariate two-scale difference equation, which is studied in approximation theory, curve design and wavelets theory. This paper analysis the correlation between the existence of smooth compactly supported solutions of this equation and the
Protassov, V. (Vladimir)
core   +6 more sources

Home - About - Disclaimer - Privacy