Hyers-Ulam-Rassias stability of orthogonality equation on restricted domains
نویسندگان
1 Department of Electronic and Electrical Engineering, College of Science and Technology, Hongik University, 30016 Sejong, Republic of Korea
2 Mathematics Section, College of Science and Technology, Hongik University, 30016 Sejong, Republic of Korea
doi
10.22075/ijnaa.2021.23176.2487چکیده
In this paper, we prove some theorems about the Hyers-Ulam-Rassias stability of linear isometries. In particular, this paper will address the stability of the orthogonality equation, $\langle f(x), f(y) \rangle = \langle x, y \rangle$, on the restricted domains.