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Related papers: Remarks on Fixed Point Assertions in Digital Topol…

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We continue the work of [5] and [3], in which are considered papers in the literature that discuss fixed point assertions in digital topology. We discuss published assertions that are incorrect or incorrectly proven; that are severely…

General Topology · Mathematics 2018-12-13 Laurence Boxer

The topic of fixed points in digital metric spaces has drawn yet more publications with assertions that are incorrect, incorrectly proven, trivial, or incoherently stated. We discuss publications with bad assertions concerning fixed points…

Geometric Topology · Mathematics 2025-12-19 Laurence Boxer

We continue a discussion of published assertions that are incorrect, incorrectly proven, or trivial, in the theory of fixed points in digital topology.

Geometric Topology · Mathematics 2024-11-01 Laurence Boxer

The topic of fixed points in digital metric spaces continues to draw publications with assertions that are incorrect, incorrectly proven, trivial, or incoherently stated. We continue the work of our earlier papers that discuss publications…

Geometric Topology · Mathematics 2025-04-08 Laurence Boxer

This paper continues a series discussing flaws in published assertions concerning fixed points in digital metric spaces.

Geometric Topology · Mathematics 2023-07-21 Laurence Boxer

We continue the work of [4, 2, 3], in which we discuss published assertions that are incorrect or incorrectly proven; that are severely limited or reduce to triviality; or that we improve upon.

Geometric Topology · Mathematics 2020-01-31 Laurence Boxer

This paper continues a series discussing flaws in published assertions concerning fixed points in digital images.

Geometric Topology · Mathematics 2023-09-11 Laurence Boxer

Several recent papers in digital topology have sought to obtain fixed point results by mimicking the use of tools from classical topology, such as complete metric spaces. We show that in many cases, researchers using these tools have…

Geometric Topology · Mathematics 2018-08-30 Laurence Boxer

Several recent papers in digital topology have sought to obtain fixed point results by mimicking the use of tools from classical topology, such as complete metric spaces and homotopy invariant fixed point theory. We show that in many cases,…

General Topology · Mathematics 2018-07-04 Laurence Boxer , P. Christopher Staecker

This paper continues a series in which we study deficiencies in previously published works concerning fixed point assertions for digital images.

Geometric Topology · Mathematics 2024-01-19 Laurence Boxer

In this paper we make some observations concerning m-metric spaces and point out some discrepancies in the proofs found in the literature. To remedy this, we propose a new topological construction and prove that it is in fact a…

General Topology · Mathematics 2018-07-03 Samer Assaf

We study the approximate fixed point property (AFPP) for continuous single-valued functions and for continuous multivalued functions in digital topology. We extend what is known about these notions and discuss errors that have appeared in…

General Topology · Mathematics 2020-01-20 Laurence Boxer

In this paper we introduce the concept of the rectangular metric like spaces, along with its topology and we prove some fixed point theorems under different contraction principles. We introduce the concept of modified metric-like space as…

General Topology · Mathematics 2018-03-16 Nabil Mlaiki , Kamal Abudayeh , Thabet Abdeljawad , Muhib Abuloha

In this paper, we study some new fixed point results for self maps defined on partial metric type spaces. In particular, we give common fixed point theorems in the same setting. Some examples are given which illustrate the results.

General Topology · Mathematics 2018-09-12 Yaé Ulrich Gaba

We develop new tools for the construction of fixed point sets in digital topology. We define excludable points and show that these may be excluded from all freezing sets. We show that articulation points are excludable. We also present…

Geometric Topology · Mathematics 2024-06-11 Laurence Boxer

In this paper, we establish some fixed point theorems in ordered partial metric spaces. An example is given to illustrate our obtained results.

General Topology · Mathematics 2016-10-05 Hassen Aydi

It is pointed out that the universality might seriously be violated by models with several fixed points.

High Energy Physics - Theory · Physics 2007-05-23 Janos Polonyi

In this article, we prove some fixed point theorems in metric type spaces. This article is just a generalization some results previously proved in \cite{niyi-gaba}. In particular, we give some coupled common fixed points theorems under weak…

General Topology · Mathematics 2015-05-12 Yaé Ulrich Gaba

We give a quick survey of the various fixed point theorems in computability theory, partial combinatory algebra, and the theory of numberings, as well as generalizations based on those. We also point out several open problems connected to…

Logic · Mathematics 2024-02-06 Sebastiaan A. Terwijn

In this article we studied the relationship between metric spaces and multiplicative metric spaces. Also, we pointed out some fixed and common fixed point results under some contractive conditions in multiplicative metric spaces can be…

General Topology · Mathematics 2015-12-14 K. Abodayeh , A. Pitea , W. Shatanawi , T. Abdeljawad
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