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2015 Recent developments of the conditional stability of the homomorphism equation
Janusz Brzdęk, Włodzimierz Fechner, Mohammad Sal Moslehian, Justyna Sikorska
Banach J. Math. Anal. 9(3): 278-326 (2015). DOI: 10.15352/bjma/09-3-20


The issue of Ulam's type stability of an equation is understood in the following way: when a mapping which satisfies the equation approximately (in some sense), it is "close" to a solution of it. In this expository paper, we present a survey and a discussion of selected recent results concerning such stability of the equations of homomorphisms, focussing especially on some conditional versions of them.


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Janusz Brzdęk. Włodzimierz Fechner. Mohammad Sal Moslehian. Justyna Sikorska. "Recent developments of the conditional stability of the homomorphism equation." Banach J. Math. Anal. 9 (3) 278 - 326, 2015.


Published: 2015
First available in Project Euclid: 19 December 2014

zbMATH: 1312.39031
MathSciNet: MR3296140
Digital Object Identifier: 10.15352/bjma/09-3-20

Primary: 46H99
Secondary: 39B52‎ , 39B55 , 39B82

Keywords: fixed point method , Hyers' sequence , ‎Hyers--Ulam--Rassias stability , invariant mean method , orthogonal) Cauchy equation , orthogonality , restricted domain , sandwich technique

Rights: Copyright © 2015 Tusi Mathematical Research Group


Vol.9 • No. 3 • 2015
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