Chinese Quarterly Journal of Mathematics ›› 2018, Vol. 33 ›› Issue (3): 302-312.doi: 10.13371/j.cnki.chin.q.j.m.2018.03.009

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Fuzzy Stability of the Orthogonal Cauchy Functional equations

  

  1. 1. School of Electronics and Communication Engineering, Guangxi Colleges and Universities Key,Laboratory of Complex System Optimization and Big Data Processing, Yulin Normal University 2. School of Information Science and Engineering, Xiamen University 3. School of Mechanical and Electrical Engineering, Guizhou Normal University
  • Accepted:2017-06-13 Online:2018-09-30 Published:2020-10-08
  • About author:BI Lv-qing(1981-), male, native of Nanning, Guangxi, Ph.D, a lecture of Yulin Normal University, engages in fuzzy mathematics and terahertz technology.
  • Supported by:
    Supported by Opening Foundation of Guangxi Colleges and Universities Key Laboratory of Complex System Optimization and Big Data Processing(Grant No.2017CSOBDP0103); Guangxi Universitys Science and Technology Research Project(Grant No.201012MS185); Science and Technology Foundation of Guizhou Province(Grant No.LKS[2012]34);

Abstract: In this paper, we establish fuzzy stability of the orthogonal Cauchy functional equations f(x + y) = f(x) + f(y), x ⊥ y and the orthogonal Cauchy functional of P exider type f(x + y) = g(x) + h(y), x ⊥ y in which ⊥ is the orthogonality in the sense of Rtz. 

Key words: Fuzzy normed space, Hyers-Ulam stability, Orthogonally Cauchy functional equation, Orthogonally Cauchy functional Pexider equation, Orthogonality space

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