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Some fixed point theorems in fuzzy reflexive Banach spaces

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  • Sadeqi, I.
  • Solaty kia, F.

Abstract

In this paper, we first show that there are some gaps in the fixed point theorems for fuzzy non-expansive mappings which are proved by Bag and Samanta, in [Bag T, Samanta SK. Fixed point theorems on fuzzy normed linear spaces. Inf Sci 2006;176:2910–31; Bag T, Samanta SK. Some fixed point theorems in fuzzy normed linear spaces. Inform Sci 2007;177(3):3271–89]. By introducing the notion of fuzzy and α- fuzzy reflexive Banach spaces, we obtain some results which help us to establish the correct version of fuzzy fixed point theorems. Second, by applying Theorem 3.3 of Sadeqi and Solati kia [Sadeqi I, Solati kia F. Fuzzy normed linear space and it’s topological structure. Chaos, Solitons & Fractals, in press] which says that any fuzzy normed linear space is also a topological vector space, we show that all topological version of fixed point theorems do hold in fuzzy normed linear spaces.

Suggested Citation

  • Sadeqi, I. & Solaty kia, F., 2009. "Some fixed point theorems in fuzzy reflexive Banach spaces," Chaos, Solitons & Fractals, Elsevier, vol. 41(5), pages 2606-2612.
    • Handle: RePEc:eee:chsofr:v:41:y:2009:i:5:p:2606-2612
    DOI: 10.1016/j.chaos.2008.09.050
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