Stability of generalized QCA-functional equation in P-Banach spaces

Document Type : Research Paper


Department of Mathematics, Urmia University, Urmia, Iran.


In this paper, we investigate the generalized Hyers-Ulam-Rassias stability for the quartic, cubic and additive functional equation
 ($k \in \mathbb{Z}-{0,\pm1}$) in $p-$Banach spaces.


  • Receive Date: 12 January 2010
  • Revise Date: 04 June 2010
  • Accept Date: 19 June 2010
  • First Publish Date: 05 July 2010