A remark on the Hyers-Ulam-Rassias stability of $n$-Jordan $*$-homomorphisms on $C^*$-algebras

Document Type : Research Paper


Department of Mathematics, Payame Noor University, Tehran, Iran


In the Hyers-Ulam-Rassias stability depending on the type of the function whose stability we want to verify a suitable functional equation is used. The authors in [6] want to investigate the Hyers-Ulam-Rassias stability of $n$-Jordan $C^*$-homomorphisms on $C^*$-algebras, but they used a quadratic functional equation while we know that the homomorphisms are linear on $C^*$-algebras. In this paper, we correct the main results of  [6]  by removing the quadratic functional equation and replacing the linear one and removing some extra conditions. We also show that by using some other multi-variable linear functional equations, the estimation becomes better and more accurate.


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Volume 15, Issue 4
April 2024
Pages 1-9
  • Receive Date: 06 February 2023
  • Revise Date: 12 February 2023
  • Accept Date: 20 April 2023