On Solution and Stability of a Two-Variable Functional Equations

Y. J. Cho, R. Saadati, S. Shabanian and S. M. Vaezpour

Discrete Dynamics in Nature and Society, 2011, vol. 2011, 1-18

Abstract:

The main purpose of this paper is to investigate the stability of the functional equation f ( x + y , y + z ) = 2 f ( x / 2 , y / 2 ) + 2 f ( y / 2 , z / 2 ) in normed spaces. The solutions of such functional equations are considered.

Date: 2011
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnddns:527574

DOI: 10.1155/2011/527574

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