Turkish Journal of Analysis and Number Theory, 2018, Vol. 6, No. 6, 159-163
Available online at http://pubs.sciepub.com/tjant/6/6/3
©Science and Education Publishing
DOI:10.12691/tjant-6-6-3
Fixed Point Results in JS-Multiplicative Metric Spaces
Abdullah Shoaib
*
, Qaiser Mehmood
Department of Mathematics and Statistics, Riphah International University, Islamabad - 44000, Pakistan
*Corresponding author: abdullahshoaib15@yahoo.com
Received September 22, 2018; Revised November 11, 2018; Accepted December 06, 2018
Abstract In this paper, we have introduced JS-multiplicative metric space and proved some fixed point theorems
in this space. This new metric function is a generalized form of several functions such as multiplicative metric,
dislocated multiplicative metric, multiplicative b-metric and multiplicative b-metric-like.
Keywords: fixed point, Js multiplicative metric space, multiplicative metric space, multiplicative b-metric-like
space, multiplicative b-metric space
2010 Mathematics Subject Classification: 46S40; 47H10; 54H25.
Cite This Article: Abdullah Shoaib, and Qaiser Mehmood, “Fixed Point Results in JS-Multiplicative Metric
Spaces.” Turkish Journal of Analysis and Number Theory, vol. 6, no. 6 (2018): 159-163. doi: 10.12691/tjant-6-6-3.
1. Introduction
Ozaksar and Cevical [1] investigated multiplicative
metric space and proved its topological properties.
Mongkolkeha et al. [2] described the concept of
multiplicative proximal contraction mapping and proved
best proximity point theorems for such mappings.
Recently, Abbas et al. [3] proved some common fixed
point results of quasi weak commutative mappings on a
closed ball in the setting of multiplicative metric spaces.
They also describe the main conditions for the existence
of common solution of multiplicative boundary value
problem. For further results on multiplicative metric space,
see [4,5,6,7]. In 2017, Ali et al. [8] introduced the notion
of b -multiplicative and proved some fixed point result.
As an application, they established an existence theorem
for the solution of a system of Fredholm multiplicative
integral equations. Bakht Zada and Usman Riaz [9]
introduced the idea of multiplicative b-metric-like space.
Jleli and Samet [10] introduce a new generalization of
metric space called generalized metric space (Js-metric
space) and proved some fixed point theorems (see
[11,12,13] for further results).
In this paper, we present a new concept of Js multiplicative
metric space that covers different spaces including
multiplicative metric space, multiplicative b-metric space
and multiplicative b-metric-like space. Also we prove
Ciric type fixed point theorem and some fixed point theorems
with partial order in Js multiplicative metric space.
2. Js Multiplicative Metric Space
Definition 2.1 Let ≠ ϕ and let : [1, ) Ψ × → +∞
be a mapping. For all , ∈ w we define the set
( ) , , Ψ B w as follows:
( ) { }
{ }
, , : lim ( , ) 1.
→∞
Ψ = ⊂ Ψ =
n n
n
B w w w w
Definition 2.2 Let ≠ ϕ and : [1, ) Ψ × → +∞ be
a given mapping. Then ( , ) Ψ is called Js-multiplicative
metric space, if it satisfies the following conditions:
( )
1
Ψ For all , , ∈ wy we have ( ) , 1 Ψ > wy and
( ) , 1 ; Ψ = ⇒ = wy w y
( )
2
Ψ For all , , ∈ wy we have ( ) , (, ); Ψ =Ψ wy yw
( )
3
Ψ there exists 0 > h such that if for all
( ) , , ∈ × wy { } ( ) , , , ∈ Ψ
n
w B w then
( , ) lim sup ( , ).
→∞
Ψ ≤ Ψ
h
n
n
wy w y
The pair ( , ) Ψ is called a Js multiplicative metric space.
Remark 2.3 Clearly if the set ( , , ) Ψ B w is empty for all
, ∈ w then ( , ) Ψ is a Js multiplicative metric space if
and only if ( )
1
Ψ and ( )
2
Ψ are satisfied.
Example 2.4 Let [0, ) = +∞ and let : [1, ) Ψ × → ∞
be define by
2
( )
( , ) ,
+
Ψ =
w y
wy α
where 1 > α be a finite fixed real number is a Js
multiplicative metric space for all , , . ∈ wy Let
( ) , , , ∈ Ψ
n
z B w then
lim ( , ) 1.
→∞
Ψ =
n
n
z w
So <∞
n
z except possibly for finite number of terms.
Let p be the smallest natural number such that , <∞
n
z
then