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3 papers
On new existence of a unique common solution to a pair of non-linear matrix equations
Hiranmoy Garai, Lakshmi Kanta Dey, Wutiphol Sintunavarat +2
The main goal of this article is to study the existence of a unique positive definite common solution to a pair of matrix equations of the form \begin{eqnarray*} X^r=Q_1 + \display…
Further comments on a fixed point theorem in the fractal space
Nguyen Van Dung, Wutiphol Sintunavarat
In this paper, we give some further comments to the counterexample and the results of R.~K. Bisht in [R.~K. Bisht. \newblock {Comment on: A new fixed point theorem in the fractal s…
Stability of Euler-Lagrange type cubic functional equations in quasi-Banach spaces
Wutiphol Sintunavarat, Nguyen Van Dung, Anurak Thanyacharoen
In this paper, we study the generalized Hyers-Ulam stability of Euler-Lagrange type cubic functional equation of the form \begin{align*} 2mf(x + my) + 2f(mx - y) = (m^3 + m)[f(x+ y…