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- 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.

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

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)

Recently, Gordji et al.] prove the coupled coincidence point theorems for nonlinear contraction mappings satisfying commutative condition in intuitionistic fuzzy normed spaces. The aim of this article is to extend and improve some coupled coincidence point theorems of Gordji et al. Also, we give an example of a nonlinear contraction mapping which is not… (More)

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)

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

- Wutiphol Sintunavarat, Poom Kumam
- Appl. Math. Lett.
- 2011

Recently, Azam et al. introduced new spaces called the complex valued metric spaces and established the existence of fixed point theorems under the contraction condition. In this article, we extend and improve the condition of contraction of the results of Azam et al. and also apply the main result to the unique common solution of system of Urysohn integral… (More)

- Wutiphol Sintunavarat, Poom Kumam
- Int. J. Math. Mathematical Sciences
- 2011

The concept of tangential for single-valued mappings is extended to multivalued mappings and used to prove the existence of a common fixed point theorem of Gregus type for four mappings satisfying a strict general contractive condition of integral type. Consequently, several known fixed point results generalized and improved the corresponding recent result… (More)

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