Acta mathematica scientia,Series B ›› 2016, Vol. 36 ›› Issue (2): 593-601.doi: 10.1016/S0252-9602(16)30023-6

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ON APPROXIMATELY (p, q)-WRIGHT AFFINE FUNCTIONS AND INNER PRODUCT SPACES

Anna BAHYRYCZ, Magdalena PISZCZEK   

  1. Institute of Mathematics, Pedagogical University, Podchorazych 2, 30-084 Kraków, Poland
  • Received:2014-12-04 Revised:2015-01-08 Online:2016-04-25 Published:2016-04-25

Abstract:

We prove, using the fixed point approach, some results on hyperstability (in normed spaces) of the equation that defines the generalization of p-Wright affine functions and show that they yield a simple characterization of the complex inner product spaces.

Key words: Hyperstability, p-Wright affine function, complex inner product space, fixed point theorem

CLC Number: 

  • 39B52
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