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Orthogonal stability of the generalized quadratic functional equations in the sense of Rätz
- Source :
- Demonstratio Mathematica, Vol 52, Iss 1, Pp 523-530 (2019)
- Publication Year :
- 2019
- Publisher :
- De Gruyter, 2019.
-
Abstract
- Let (X, ⊥) be an orthogonality module in the sense of Rätz over a unital Banach algebra A and Y be a real Banach module over A. In this paper, we apply the alternative fixed point theorem for proving the Hyers-Ulam stability of the orthogonally generalized k-quadratic functional equation of the form
Details
- Language :
- English
- ISSN :
- 23914661
- Volume :
- 52
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Demonstratio Mathematica
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.7ca4fc561eba4d18907c0a130090bae5
- Document Type :
- article
- Full Text :
- https://doi.org/10.1515/dema-2019-0044