A NOTE ON RANDOM FUZZY RENEWAL PROCESS

  • Published : 2009.09.30

Abstract

Recently, Zhao et.al [European Journal of Operational Research 169 (2006) 189-201] discussed a random fuzzy renewal process based on random fuzzy theory. They considered the rate of the random fuzzy renewal process and presented a random fuzzy elementary renewal theorem. They also established Blackwell's theorem in random fuzzy sense. But all these results are invalid. We give a counter example in this note.

Keywords

References

  1. B. Liu, Uncertainty theory, Lecture Note, Tsinghua University, 2003.
  2. R. Zhao , W. Tang, H. Yun, Random fuzzy renewal process, European Journal of Operational Research 169 (2006) 189-201. https://doi.org/10.1016/j.ejor.2004.04.049