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- Wutiphol Sintunavarat, Poom Kumam
- J. Applied Mathematics
- 2011

- Antonio-Francisco Roldán-López-de-Hierro, Wutiphol Sintunavarat
- 2009 7th International Symposium on Intelligent…
- 2002

Using the theory of countable extension of t-norms we prove a common fixed point theorem in fuzzy metric spaces.

In this paper, we prove a common fixed point theorem for a pair of weakly compatible mappings in fuzzy metric space using the joint common limit in the range property of mappings called (JCLR) property. An example is also furnished which demonstrates the validity of main result. We also extend our main result to two finite families of self mappings. Our… (More)

- Wutiphol Sintunavarat, Yeol Je Cho, Poom Kumam
- Computers & Mathematics with Applications
- 2011

and Applied Analysis 3 iv A subsetC ofXω is said to be closed if the limit of a convergent sequence ofC always belongs to C. v A subset C of Xω is said to be bounded if, for all λ > 0, φλ C sup{ωλ x, y : x, y ∈ C} < ∞. Along this paper, we will use the following alternative notions of convergence and Cauchyness, which are equivalent to the notions given… (More)

- Wutiphol Sintunavarat, Poom Kumam
- Appl. Math. Lett.
- 2009

* Correspondence: poom. kum@kmutt.ac.th Department of Mathematics, Faculty of Science, King Mongkut’s University of Technology Thonburi (KMUTT), Bangmod, Bangkok 10140, Thailand Abstract In this article, we define a tangential property which can be used not only for singlevalued mappings but also for multi-valued mappings, and used it in the prove for the… (More)

- Supak Phiangsungnoen, Wutiphol Sintunavarat, Poom Kumam
- Journal of Intelligent and Fuzzy Systems
- 2014

In this paper, we show the existence of a coupled fixed point theorem of nonlinear contraction mappings in complete metric spaces without the mixed monotone property and give some examples of a nonlinear contraction mapping, which is not applied to the existence of coupled fixed point by using the mixed monotone property. We also study the necessary… (More)

The object of this paper is to utilize the notion of β-admissible in the sense of Mohammadi et al. (Fixed Point Theory Appl. 2013:24, 2013) to prove a fuzzy fixed point theorem and present some corollaries. We also give illustrative examples which demonstrate the validity of hypotheses of our results and applications to fuzzy fixed points for fuzzy mappings… (More)