The invariance of the peak point(s) in a non-symmetrical graph via CETD matrix under varying α-levels

Bibliographic Details
Title: The invariance of the peak point(s) in a non-symmetrical graph via CETD matrix under varying α-levels
Authors: Hanyin Zhang, Babatunde Oluwaseun Onasanya, Aishat Omobolanle Ilesanmi, Yuming Feng, Dongfang Yan
Source: AIMS Mathematics, Vol 9, Iss 10, Pp 29587-29607 (2024)
Publisher Information: AIMS Press, 2024.
Publication Year: 2024
Collection: LCC:Mathematics
Subject Terms: peak value, average time dependent matrix, revised time dependent matrix, combined effect time dependent matrix, fuzzy matrix, Mathematics, QA1-939
More Details: Events or attributes occur at different ages or times but, in some circumstances, for effective planning and policy formulation, the peak point, where the events or attributes has its peak value, is of interest. Usually, the graphs depicting peak values are not symmetrical. In determining the peak point(s) of events that occur over time, a set of $ \alpha_s $ of $ \alpha $-levels, chosen from an antisymmetric interval $ (0, 1] $, was used on an ATD matrix. This was done to obtain an RTD matrix which was then aggregated to obtain a CETD matrix. Most authors chose $ \alpha $ without any condition. The problem associated with this was that two different sets of $ \alpha $ may not necessarily produce the same peak point for the same data set. In this study, the condition to guarantee that the row which had the highest sum (the peak value) in a CETD matrix was invariant, regardless of the set of $ \alpha $-levels, was established. To establish the authenticity of this method, there were experiments conducted and numerical examples were given in this paper.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2473-6988
Relation: https://doaj.org/toc/2473-6988
DOI: 10.3934/math.20241433?viewType=HTML
DOI: 10.3934/math.20241433
Access URL: https://doaj.org/article/dc3acb4481bd49dbb7fc99bac597060a
Accession Number: edsdoj.3acb4481bd49dbb7fc99bac597060a
Database: Directory of Open Access Journals
More Details
ISSN:24736988
DOI:10.3934/math.20241433?viewType=HTML
Published in:AIMS Mathematics
Language:English