## Annals of Functional Analysis

### Stability of functional equations arising from number theory and determinant of matrices

#### Abstract

In this paper, we consider the Ulam–Hyers stability of the functional equations $f(ux-vy,uy-vx)=f(x,y)f(u,v),$ $f(ux+vy,uy-vx)=f(x,y)f(u,v),$ $f(ux+vy,uy+vx)=f(x,y)f(u,v),$ $f(ux-vy,uy+vx)=f(x,y)f(u,v)$ for all $x,y,u,v\in\Bbb{R}$, where $f:\Bbb{R}^{2}\to\Bbb{R}$, which arise from number theory and are connected with the characterizations of the determinant and permanent of two-by-two matrices.

#### Article information

Source
Ann. Funct. Anal. Volume 8, Number 3 (2017), 329-340.

Dates
Accepted: 21 October 2016
First available in Project Euclid: 4 April 2017

https://projecteuclid.org/euclid.afa/1491280441

Digital Object Identifier
doi:10.1215/20088752-0000017X

#### Citation

Choi, Chang-Kwon; Chung, Jaeyoung; Riedel, Thomas; Sahoo, Prasanna K. Stability of functional equations arising from number theory and determinant of matrices. Ann. Funct. Anal. 8 (2017), no. 3, 329--340. doi:10.1215/20088752-0000017X. https://projecteuclid.org/euclid.afa/1491280441.

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