Results 11 to 20 of about 127 (41)

Derivation Pairs on Rings and RNGs [PDF]

open access: yesAnnales Mathematicae Silesianae
We generalize a classical result about derivation pairs on function algebras. Specifically, we describe the forms of derivation pairs on rings and rngs (non-unital rings) which are not assumed to be commutative.
Ebanks Bruce
doaj   +3 more sources

A Kannappan-Cosine Functional Equation on Semigroups [PDF]

open access: yesAnnales Mathematicae Silesianae
In this paper we determine the complex-valued solutions of the Kannappan-cosine functional equation g(xyz0) = g(x)g(y) − f (x)f (y), x, y ∈ S, where S is a semigroup and z0 is a fixed element in S.
Jafar Ahmed   +2 more
doaj   +3 more sources

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

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

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

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

The existence of solutions to certain type of nonlinear difference-differential equations

open access: yesOpen Mathematics, 2018
In this paper we study the entire solutions to a certain type of difference-differential equations. We also give an affirmative answer to the conjecture of Zhang et al.
Lü Weiran   +3 more
doaj   +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

Existence of entire solutions of nonlinear difference equations [PDF]

open access: yes, 2011
summary:In this paper we obtain that there are no transcendental entire solutions with finite order of some nonlinear difference equations of different ...
Liu, Kai, Liu, Xinling, Yang, Lianzhong
core   +1 more source

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