Common fixed point theorems in Menger spaces

نویسندگان

  • Chi-Ming Chen
  • Tong-Huei Chang
چکیده

Probabilistic metric space was first introduced by Menger [6]. Later, there are many authors who have some detailed discussions and applications of a probabilistic metric space, for example, we may see Schweizer and Sklar [8]. Besides, there are many results about fixed point theorems in a probabilistic metric space with contractive types having appeared; we may see the papers [1–3, 9–12]. In this paper, we will prove two common fixed point theorems for four self-mappings and two set-valued mappings with φ-contractive condition in a Menger space, which generalize some results of Dedeić and Sarapa [4, 5], and Sehgal and Bharucha-Reid [9]. A mapping F :R→R+ is said to be a distribution if it is nondecreasing left continuous with inf{F(t) : t ∈R} = 0 and sup{F(t) : t ∈R} = 1. We will denote by the set of all distribution functions while G will always denote the specific distribution function defined by

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عنوان ژورنال:
  • Int. J. Math. Mathematical Sciences

دوره 2006  شماره 

صفحات  -

تاریخ انتشار 2006