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On a Cubic Equation and a Jensen-Quadratic Equation [PDF]

open access: yesAbstract and Applied Analysis, 2007
We obtain the general solutions of the cubic functional equation3[g(x+y)+g(x−y)+6g(x)]=2g(2x+y)+2g(2x−y)+g(−x−y)+g(−x+y)+6g(−x)and the Jensen-quadratic functional equationf((x+y)/2,z+w)+f((x+y)/2,z−w)=f(x,z)+f(x,w)+f(y,z)+f(y,w).
Jae-Hyeong Bae, Won-Gil Park
doaj   +3 more sources

Classification of generalized ternary quadratic quasigroup functional equations of the length three

open access: diamondKarpatsʹkì Matematičnì Publìkacìï, 2019
A functional equation is called: generalized if all functional variables are pairwise different; ternary if all its functional variables are ternary; quadratic if each individual variable has exactly two appearances; quasigroup if its solutions are ...
F.M. Sokhatsky, A.V. Tarasevych
doaj   +3 more sources

A quadratic bilinear equation arising from the quadratic dynamical system [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2021
A quadratic dynamical system with practical applications is taken into consideration. This system is transformed into a new bilinear system with Hadamard products by means of the implicit matrix structure. The corresponding quadratic bilinear equation is
Bo Yu, Ning Dong, Qiong Tang
doaj   +1 more source

Convex Quadratic Equation [PDF]

open access: yesJournal of Optimization Theory and Applications, 2020
AbstractTwo main results (A) and (B) are presented in algebraic closed forms. (A) Regarding the convex quadratic equation, an analytical equivalent solvability condition and parameterization of all solutions are formulated, for the first time in the literature and in a unified framework.
Li-Gang Lin   +2 more
openaire   +2 more sources

Quadratic Equation in Split Quaternions

open access: yesAxioms, 2022
Split quaternions are noncommutative and contain nontrivial zero divisors. Generally speaking, it is difficult to solve equations in such an algebra. In this paper, by using the roots of any split quaternions and two real nonlinear systems, we derive ...
Wensheng Cao
doaj   +1 more source

Analisis Kesalahan Siswa Kelas IX MTs Al-Huda Dolok Sinumbah Kabupaten Simalungun Dalam Menyelesaikan Soal Persamaan Kuadrat

open access: yesJurnal Derivat, 2023
This study aims to identify and describe student errors based on concepts errors, principles errors, and operations errors in solving quadratic equation material. This type of research is descriptive qualitative.
Jeriko Lumban Batu   +1 more
doaj   +1 more source

Characterization and stability analysis of advanced multi-quadratic functional equations

open access: yesAdvances in Difference Equations, 2021
In this paper, we introduce a new quadratic functional equation and, motivated by this equation, we investigate n-variables mappings which are quadratic in each variable.
Abasalt Bodaghi   +2 more
doaj   +1 more source

Characterization and Stability of Multi-Euler-Lagrange Quadratic Functional Equations

open access: yesJournal of Function Spaces, 2022
The aim of the current article is to characterize and to prove the stability of multi-Euler-Lagrange quadratic mappings. In other words, it reduces a system of equations defining the multi-Euler-Lagrange quadratic mappings to an equation, say, the multi ...
Abasalt Bodaghi   +2 more
doaj   +1 more source

UNIFIED FUNCTIONAL METHOD FOR SOLVING GENERAL POLYNOMIAL EQUATIONS OF DEGREE LESS THAN FIVE

open access: yesMalaysian Journal of Computing, 2021
A unified method for solving general polynomial equation of degree less than five that incorporate a computational formula that relate the coefficients of the depressed equation and the coefficient of the standard polynomial equation is proposed in this ...
Dozie Felix Nwosu   +3 more
doaj   +1 more source

On a Quadratic Nonlinear Fractional Equation

open access: yesFractal and Fractional, 2023
In this paper, we study a quadratic nonlinear equation from the fractional point of view. An explicit solution is given in terms of the Lambert special function.
Iván Area, Juan J. Nieto
doaj   +1 more source

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