Research Article
On Multivalued Hybrid Contractions with Applications
Monairah Alansari,
1
Shehu Shagari Mohammed ,
2
Akbar Azam ,
3
and Nawab Hussain
1
1
Department of Mathematics, King Abdulaziz University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
2
Department of Mathematics, Faculty of Physical Sciences, Ahmadu Bello University, Nigeria
3
Department of Mathematics, COMSATS University, Chak Shahzad, Islamabad 44000, Pakistan
Correspondence should be addressed to Shehu Shagari Mohammed; shagaris@ymail.com
Received 11 May 2020; Accepted 18 June 2020; Published 11 July 2020
Guest Editor: Antonio Francisco Roldan Lopez de Hierro
Copyright © 2020 Monairah Alansari et al. This is an open access article distributed under the Creative Commons Attribution
License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is
properly cited.
Recently, a notion of b-hybrid contraction for single-valued mappings in the framework of b-metric spaces which unify and
improve several significant existing results in the corresponding literature was introduced. This paper presents a multivalued
generalization for such contraction. Moreover, one of our obtained results is applied to analyze some solvability conditions of
Fredholm-type integral inclusions. Nontrivial examples are also provided to support the assertions of our theorems.
1. Introduction
The Banach contraction principle is the first most well-
known, simple, and versatile classical result in fixed point
theory with metric space structure. More than a handful of
literature embraces applications and generalizations of this
principle from different perspectives, for example, by weak-
ening the hypotheses, employing different mappings and var-
ious forms of metric spaces. In this context, the work of
Rhoades [1] is useful for visiting important modifications of
Banach-type contractive definitions. In 1969, Nadler [2] gave
a generalization of the Banach contraction principle for mul-
tivalued contraction mappings by using the Hausdorff metric
and established the first fixed point theorem for multivalued
mappings defined on metric space. Since then, a number of
generalizations in diverse frames of Nadler’s fixed point
result have been investigated by several authors (see, for
example, [3–9] and references therein).
The analysis of new spaces and their properties has been
an interesting topic among the mathematical research com-
munity. In this direction, the notion of b-metric spaces is
presently thriving. The idea commenced with the work of
Bakhtin [10] and Bourbaki [11]. Thereafter, Czerwik [12]
gave a postulate which is weaker than the classical triangle
inequality and formally established a b-metric space with a
view of improving the Banach fixed point theorem. Mean-
while, the notion of b-metric spaces is gaining enormous gen-
eralizations (see, for example, [8, 13–15]). For a recent short
survey on basic concepts and results in fixed point theory in
the framework of b-metric spaces, we refer the interested
reader to Karapinar [16]. On similar development, one of
the active branches of fixed point theory that is also currently
drawing the attentions of researchers is the study of hybrid
contractions. The concept has been viewed in two directions;
viz., first, hybrid contraction deals with contractions involv-
ing both single-valued and multivalued mappings, and the
second merges linear and nonlinear contractions. Recently,
Karapinar and Fulga [17] introduced a new notion of b-
hybrid contraction in the frame of b-metric space and stud-
ied the existence and uniqueness of fixed points for such
contraction. Their ideas merged several existing results in
the corresponding literature. Interestingly, hybrid fixed
point theory has potential applications in functional inclu-
sions, optimization theory, fractal graphics, discrete dynam-
ics for set-valued operators, and other areas of nonlinear
functional analysis. For some work on this line, the reader
may consult [17–21].
Integral inclusions arise in several problems in mathemati-
cal physics, control theory, critical point theory for nonsmooth
energy functionals, differential variational inequalities, fuzzy
set arithmetic, traffic theory, etc. (see, for instance, [22–24]).
Usually, the first most concerned problem in the study of
Hindawi
Journal of Function Spaces
Volume 2020, Article ID 8401403, 12 pages
https://doi.org/10.1155/2020/8401403