Keywords
complete b-metric space, Altering distance function, α-admissible maping
This paper explores α-ψ-ϕ contractive mappings, extending the field of self-map and fixed-point theorems.
We analyze α-ψ-ϕ contractive mappings using rigorous mathematical proofs and logical deductions.
A key main result is established, supported by intuitive corollaries and practical examples, highlighting the applicability of our findings.
Our work provides a fresh perspective on contractive mappings, simplifying complex mathematical concepts and enriching the literature on fixed-point theorems.
complete b-metric space, Altering distance function, α-admissible maping
Banach's principle of contraction theory, as elucidated in Ref. 1, has served as a cornerstone for numerous research endeavors, facilitating expansions across various journals. The ubiquity of this theorem underscores its significance in extending the frontiers of mathematical discourse. Such expansions often entail imposing contraction restrictions and additional constraints on the ambient spaces, thereby giving rise to a diverse array of structures, including b-metric spaces.2,3 The notion of b-metric spaces, an extension of conventional metric spaces, has been instrumental in enriching the landscape of mathematical investigations.3–6 This versatile framework has found application in a myriad of contexts, contributing to discussions on topological structures and yielding insights into the interplay between fixed and common fixed points.7–9
In this context, our research aims to address the pressing need for a deeper understanding of α-ψ-ϕ contractive mapping within the framework of b-metric spaces.10 The fundamental question we seek to explore is how the principles of contraction theory can be extended to encompass this novel mapping concept. This investigation is motivated by the observation that while traditional contraction mappings have been extensively studied, the exploration of more generalized forms, such as α-ψ-ϕ contractive mappings, remains relatively uncharted territory. Our work not only seeks to fill this gap in the literature but also aims to contribute to the advancement of mathematical theory by introducing and elucidating the properties of α-ψ-ϕ contractive mappings. Through a meticulous synthesis of internet sources, scholarly publications, and pertinent literature, we establish the theoretical framework for this novel concept.
The novelty of our approach lies in the integration of α-ψ-ϕ contractive mappings into the framework of b-metric spaces, thus expanding the scope of both contraction theory and metric space theory. This novel synthesis opens up new avenues for exploration and offers fresh insights into the dynamics of fixed point theorems in non-standard spaces. In pursuit of our objectives, we present a comprehensive analysis, bolstered by corollaries, illustrative examples, and rigorous proofs, in support of our main result. By elucidating the intricacies of α-ψ-ϕ contractive mapping within the context of b-metric spaces, we aim to provide a solid foundation for further research and to inspire new avenues of inquiry in this vibrant field of mathematical exploration.
This section serves as a foundational platform for our subsequent analysis, comprising key definitions, illustrative examples, essential notations, and fundamental theorems. These elements collectively provide the necessary groundwork and contextual understanding required to establish and prove our main result.
Let be a non-empty set and be a given real number. A function is a b-metric on the given below principles are apply;
Then, b-metric space a pair of with coefficient s.
Let X be any non empty set. Let be a self mapping on X and : × X be mapping.
We say that is α-admissible if for all
Consider Let and and such that and . Then is α-admissible.
Consider X as any set that is not empty. If and : X are mappings, then is triangular α-admissible mapping if
Let , and are mappings and
We define and
Then, is triangular α-admissible.
A function is referred to as an altering distance function if the given below principles are apply;
where, is the set of all altering distance functions.
Let : )) given by;
then is an altering distance function.
Assuming that a b-metric space () with s equal to or greater than one and are given, then sequence with for every and is called a picard sequence.
Suppose that a b-metric space with s equal to or greater than one and are given. If a picard sequence of initial point fulfills;
Whenever and Then is a Cauchy sequence.
Assuming that () is a b-metric space with s equal to or greater than one and that are given, then is referred to as “-- contractive mapping” if some for all with implies that
Assume that is a complete b-metric space with s greater than or equal to one, and mappings and ) are given;
Let’s the given below principles are apply;
(i) is -- Contractive mapping;
(ii) is triangular -admissible mapping;
(iii) let involves ); and
(iv) is continuous mapping.
Then, a fixed point of appears
Let be given as (iii), i.e. )
From the definition (2.6) and for every If for and ,then is a fixed point of
Next, Let is not equal with , then is also not equal to zero for every n belongs to
Due to the triangular -admissible mapping in (ii);
; for each .
; for each
by continuing in this process we get;
for each .
From definition (3.1), obtain;
Thus, from (3.2) we have;
Since, is continuous and increasing, we obtain;
Since, the sequence is limited from the lower. Therefore r ≥ 0 implies
We want to show r = 0.
Suppose that r > 0.
Now, of the two side of (3.4), gives:
Since, > 0, ≥ 1 and < ,
This implies and < 1
, a contradiction.
Hence, (3.5). So is a Cauchy sequence by (3.4) and Using proposition (2.1).
Let’s now demonstrate the fixed point ;-
X) implies from a complete b-metric space
So, using definition (3.1), with , gives;
Taking the limit as of the two side of (3.6), gives:
By the limit’s uniqueness and the Complete b-metric space it gives;
Hence, the fixed point of is .
Assume that is a complete b-metric space with s greater than or equal to one, and that and ) are given.
Let’s the given below principles are apply:-
(i) is -- Contractive mapping;
(ii) is triangular -admissible mapping;
(iii) implies );
(iv) if in X implies ) is equal to or greater than one for every and as , then there exist a subsequence of so that )for every .
Then, a fixed point of appears.
Proof: Proceed analogously to the proof of first theorem and use (iv) ) for a subsequence of and we get;
Taking the limit as on two side of (3.7), gives:-
By uniqueness of limit and Complete b-metric space we have;
Let and ) are the predetermined mappings, while is a complete metric space;
Let’s the given below principles are apply:-
(i) is -- Contractive mapping;
(ii) is triangular -admissible mapping;
(iii) let implies ); and
(iv) if in X implies ) for every and as
For some subsequence of so that ) for every .
Then, a fixed point of appears
If s is one, From Theorems 3.1 and 3.2 One finds this consequence.
If X = {0,3,4}, is given by is a complete b-metric space with s = 2, and also and are given as follows;
again, If and , whenever , then is -- Contractive Mapping.First, show that is α-admissible mapping.
If = 0, ,
is α-admissible mapping.
Secondly, If = 0, , the given equation holds.
is triangular α-admissible.
Lastly, check that is -- Contractive Mapping;
18 < 219
is -- Contractive Mapping.
In conclusion, this research has introduced the concept of α-ψ-ϕ contractive mapping within b-metric spaces, expanding upon contraction theory principles. Through rigorous analysis and illustrative examples, we've highlighted its significance and applicability. Future directions include exploring stability in iterative methods, investigating connections with other mathematical areas, and extending the analysis to broader classes of spaces and mappings. Overall, this exploration of α-ψ-ϕ contractive mappings opens new avenues for research with broad potential implications.
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Is the work clearly and accurately presented and does it cite the current literature?
Partly
Is the study design appropriate and is the work technically sound?
Partly
Are sufficient details of methods and analysis provided to allow replication by others?
No
If applicable, is the statistical analysis and its interpretation appropriate?
Not applicable
Are all the source data underlying the results available to ensure full reproducibility?
No source data required
Are the conclusions drawn adequately supported by the results?
Partly
Competing Interests: No competing interests were disclosed.
Reviewer Expertise: Applied Mathematics, Fixed point theory, Chemical Graph Theory
Is the work clearly and accurately presented and does it cite the current literature?
Yes
Is the study design appropriate and is the work technically sound?
Yes
Are sufficient details of methods and analysis provided to allow replication by others?
Yes
If applicable, is the statistical analysis and its interpretation appropriate?
Yes
Are all the source data underlying the results available to ensure full reproducibility?
Yes
Are the conclusions drawn adequately supported by the results?
Yes
References
1. Baewnoi K, Yambangwai D, Thianwan T: A novel algorithm with an inertial technique for fixed points of nonexpansive mappings and zeros of accretive operators in Banach spaces. AIMS Mathematics. 2024; 9 (3): 6424-6444 Publisher Full TextCompeting Interests: No competing interests were disclosed.
Reviewer Expertise: Fixed point theory
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Version 1 03 Jun 24 |
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