Axioms最新文献_第6页

Schröder-Based Inverse Function Approximation Schröder-Based逆函数近似

3区数学

Axioms Pub Date : 2023-11-08 DOI: 10.3390/axioms12111042

Roy M. Howard

引用次数: 0

Fuzzy Algorithm Applied to Factors Influencing Competitiveness: A Case Study of Brazil and Peru through Affinities Theory 模糊算法在竞争力影响因素分析中的应用——基于亲和力理论的巴西和秘鲁案例研究

3区数学

Axioms Pub Date : 2023-11-08 DOI: 10.3390/axioms12111038

Luciano Barcellos-Paula, Aline Castro-Rezende, Daniela Fantoni Alvares

{"title":"Fuzzy Algorithm Applied to Factors Influencing Competitiveness: A Case Study of Brazil and Peru through Affinities Theory","authors":"Luciano Barcellos-Paula, Aline Castro-Rezende, Daniela Fantoni Alvares","doi":"10.3390/axioms12111038","DOIUrl":"https://doi.org/10.3390/axioms12111038","url":null,"abstract":"Innovation plays a crucial role in the economy of nations worldwide. In Latin America, countries foster competitiveness through public and private incentives to support innovation. Moreover, entrepreneurship incentives seek to improve countries’ performance, although factors such as low business growth rates and informality can compromise it. Despite the efforts, there are several difficulties in achieving competitiveness, and few studies in developing countries. Therefore, the article explores the relationship between the factors that influence competitiveness, especially the role of innovation and entrepreneurship in Brazil and Peru. The research uses quantitative-qualitative methodology through modeling and simulation and a case study. The authors use the Affinities Theory to verify the relationship between the indicators that make up the competitiveness landscape and its most significant and attractive factors, adapting the methodology established by the International Institute for Management Development (IMD) World Competitiveness ranking. As a result, this algorithm allows us to know the relationships between five factors of economic attractiveness and four competitiveness indicators. As its main contributions, the study advances the frontier of knowledge about innovation and entrepreneurship, as few studies explore competitiveness in developing countries. Also, it offers a detailed explanation of the application of this algorithm, allowing researchers to reproduce this methodology in other scenarios. Practically, it might support policymakers in formulating development strategies and stimuli for business competitiveness. In addition, academic and business leaders can strengthen university-business collaboration with applied research in innovation and entrepreneurship. One limitation would be the number of countries participating in the research. The authors suggest future lines of research.","PeriodicalId":53148,"journal":{"name":"Axioms","volume":"18 S27","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135346357","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of the F* Algorithm on Strong Pseudocontractive Mappings and Its Application 强伪压缩映射上F*算法的研究及其应用

3区数学

Axioms Pub Date : 2023-11-08 DOI: 10.3390/axioms12111041

Felix D. Ajibade, Francis Monday Nkwuda, Hussaini Joshua, Taiwo P. Fajusigbe, Kayode Oshinubi

引用次数: 0

The Branch-and-Bound Algorithm in Optimizing Mathematical Programming Models to Achieve Power Grid Observability 优化数学规划模型实现电网可观测性的分支定界算法

3区数学

Axioms Pub Date : 2023-11-08 DOI: 10.3390/axioms12111040

Nikolaos P. Theodorakatos, Rohit Babu, Angelos P. Moschoudis

{"title":"The Branch-and-Bound Algorithm in Optimizing Mathematical Programming Models to Achieve Power Grid Observability","authors":"Nikolaos P. Theodorakatos, Rohit Babu, Angelos P. Moschoudis","doi":"10.3390/axioms12111040","DOIUrl":"https://doi.org/10.3390/axioms12111040","url":null,"abstract":"Phasor Measurement Units (PMUs) are the backbone of smart grids that are able to measure power system observability in real-time. The deployment of synchronized sensors in power networks opens up the advantage of real-time monitoring of the network state. An optimal number of PMUs must be installed to ensure system observability. For that reason, an objective function is minimized, reflecting the cost of PMU installation around the power grid. As a result, a minimization model is declared where the objective function is defined over an adequate number of constraints on a binary decision variable domain. To achieve maximum network observability, there is a need to find the best number of PMUs and put them in appropriate locations around the power grid. Hence, maximization models are declared in a decision-making way to obtain optimality satisfying a guaranteed stopping and optimality criteria. The best performance metrics are achieved using binary integer, semi-definite, and binary polynomial models to encounter the optimal number of PMUs with suitable PMU positioning sites. All optimization models are implemented with powerful optimization solvers in MATLAB to obtain the global solution point.","PeriodicalId":53148,"journal":{"name":"Axioms","volume":"28 17","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135390763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Solution of Two-Dimensional Solute Transport Model for Heterogeneous Porous Medium Using Fractional Reduced Differential Transform Method 非均质多孔介质二维溶质输运模型的分数阶简化微分变换解法

3区数学

Axioms Pub Date : 2023-11-08 DOI: 10.3390/axioms12111039

Manan A. Maisuria, Priti V. Tandel, Trushitkumar Patel

{"title":"Solution of Two-Dimensional Solute Transport Model for Heterogeneous Porous Medium Using Fractional Reduced Differential Transform Method","authors":"Manan A. Maisuria, Priti V. Tandel, Trushitkumar Patel","doi":"10.3390/axioms12111039","DOIUrl":"https://doi.org/10.3390/axioms12111039","url":null,"abstract":"This study contains a two-dimensional mathematical model of solute transport in a river with temporally and spatially dependent flow, explicitly focusing on pulse-type input point sources with a fractional approach. This model is analyzed by assuming an initial concentration function as a declining exponential function in both the longitudinal and transverse directions. The governing equation is a time-fractional two-dimensional advection–dispersion equation with a variable form of dispersion coefficients, velocities, decay constant of the first order, production rate coefficient for the solute at the zero-order level, and retardation factor. The solution of the present problem is obtained by the fractional reduced differential transform method (FRDTM). The analysis of the initial retardation factor has been carried out via plots. Also, the influence of initial longitudinal and transverse dispersion coefficients and velocities has been examined by graphical analysis. The impact of fractional parameters on pollution levels is also analyzed numerically and graphically. The study of convergence for the FRDTM technique has been conducted to assess its efficacy and accuracy.","PeriodicalId":53148,"journal":{"name":"Axioms","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135342489","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vector-Valued Analytic Functions Having Vector-Valued Tempered Distributions as Boundary Values 边值为向量值调质分布的向量值解析函数

3区数学

Axioms Pub Date : 2023-11-06 DOI: 10.3390/axioms12111036

Richard D. Carmichael

引用次数: 0

A Regularized Tseng Method for Solving Various Variational Inclusion Problems and Its Application to a Statistical Learning Model 求解各种变分包含问题的正则化Tseng方法及其在统计学习模型中的应用

3区数学

Axioms Pub Date : 2023-11-06 DOI: 10.3390/axioms12111037

Adeolu Taiwo, Simeon Reich

引用次数: 0

On Unique Determination of Polyhedral Sets 关于多面体集的唯一确定