Applied mathematics in science and engineering最新文献_第2页

Mathematical insights into interval solutions of fuzzy relation inequalities for effective Information resource sharing in business education 商业教育中有效信息资源共享的模糊关系不等式区间解的数学见解

Applied mathematics in science and engineering Pub Date : 2023-11-09 DOI: 10.1080/27690911.2023.2279179

Lei Zhang

{"title":"Mathematical insights into interval solutions of fuzzy relation inequalities for effective Information resource sharing in business education","authors":"Lei Zhang","doi":"10.1080/27690911.2023.2279179","DOIUrl":"https://doi.org/10.1080/27690911.2023.2279179","url":null,"abstract":"To examine the connectivity of educational and business institution networks and assess their resource accessibility, we have employed min-max fuzzy relation systems. This piece aims to delve into the outcomes resulting from various factors within a three-compartmental financial system. The research undergoes the dynamical max-min fuzzy solutions, which are expressed in an interval format. These solutions take into consideration variables such as the price index, interest rate, investment demand, fluctuations, cost per investment derived from saved funds, and the elasticity of market demand within the commercial sector. These variables are essential for comprehending the dynamics of the three-compartment financial system. It is difficult to obtain the entire set of solutions for the max-min fuzzy relation system using only minimal solutions. Some of these systems can be solved using optimized fuzzy relation models for both maximal and minimal solutions. Therefore, by converting the business market's financial system into a max-min fuzzy relation inequality, the strategy presented in this article tries to get the broadest and changing solution fluctuating between minimal and maximal solutions. With this suggested strategy for solving the problem, the limiting upper and lower values within which the given quantities fluctuate are identified. By measuring the breadth of the resulting interval, the range of fluctuation may be identified, giving a thorough insight into the system's behaviour. Due to the potential instability of market agents and their respective influences, fluctuations may occur in the demand, supply, and prices of indices in the financial system. Consequently, presenting the financial system in the format of the widest fuzzy interval solution can provide easily accessible information to the general public by illustrating the max-min fuzzy relation system of financial dynamics, outlining the necessary steps, and including a numerical example.","PeriodicalId":475946,"journal":{"name":"Applied mathematics in science and engineering","volume":" 41","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135241499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

On the two variables κ -Appell hypergeometric matrix functions 关于两个变量κ - apell超几何矩阵函数

Applied mathematics in science and engineering Pub Date : 2023-10-29 DOI: 10.1080/27690911.2023.2272862

Muneera Abdullah Qadha, Sarah Abdullah Qadha, Ahmed Bakhet

引用次数: 0

Unique identification of fractional orders in the fractional mobile–immobile solute transport system 分数阶移动-不移动溶质输运体系中分数阶的唯一识别

Applied mathematics in science and engineering Pub Date : 2023-10-26 DOI: 10.1080/27690911.2023.2243375

Gongsheng Li, Wenyi Liu, Xianzheng Jia, Zhiyuan Li

引用次数: 0

Infinite-time blowup and global solutions for a semilinear Klein–Gordan equation with logarithmic nonlinearity 一类具有对数非线性的半线性Klein-Gordan方程的无限时间爆破解和全局解

Applied mathematics in science and engineering Pub Date : 2023-10-19 DOI: 10.1080/27690911.2023.2270134

Sabbavarapu Nageswara Rao, Mahammad Khuddush, Manoj Singh, Mutum Zico Meetei

{"title":"Infinite-time blowup and global solutions for a semilinear Klein–Gordan equation with logarithmic nonlinearity","authors":"Sabbavarapu Nageswara Rao, Mahammad Khuddush, Manoj Singh, Mutum Zico Meetei","doi":"10.1080/27690911.2023.2270134","DOIUrl":"https://doi.org/10.1080/27690911.2023.2270134","url":null,"abstract":"In this article, our focus lies in investigating the existence of global solutions and the occurrence of infinite-time blowup for a nonlinear Klein–Gordon equation characterized by logarithmic nonlinearity, specifically in the form wlog⁡|w|k. Notably, our inquiry involves handling logarithmic functions within the reaction terms and accommodating the functions w0 and w1 in the boundary terms. Consequently, a pivotal task is to establish blowup conditions that intricately hinge on the characteristics of the domains and the boundary conditions. It is of significant note that our exploration incorporates domain and boundary information into the formulation of blowup conditions. By employing a combination of the potential well technique and energy estimation methodology, we delve into scenarios of low initial energy and critical initial energy. In doing so, we derive a set of sufficient conditions that encompass both the global existence and the potential explosive behaviour of solutions pertaining to this variant of the Klein–Gordon equation. This work contributes to enhancing our understanding of the intricate interplay between logarithmic nonlinearity, domain characteristics, and boundary conditions in shaping the behaviour of solutions in the realm of nonlinear wave equations.","PeriodicalId":475946,"journal":{"name":"Applied mathematics in science and engineering","volume":"73 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135730296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vallée-Poussin theorem for Hadamard fractional functional differential equations Hadamard分数阶泛函微分方程的vall<s:1> - poussin定理

Applied mathematics in science and engineering Pub Date : 2023-10-09 DOI: 10.1080/27690911.2023.2259057

Martin Bohner, Alexander Domoshnitsky, Elena Litsyn, Seshadev Padhi, Satyam Narayan Srivastava

引用次数: 0

A study on ODE-based model of risk breast cancer with body mass 基于ode的体重与乳腺癌风险模型研究

Applied mathematics in science and engineering Pub Date : 2023-09-30 DOI: 10.1080/27690911.2023.2259059

Sana Abdulkream Alharbi, Kaushik Dehingia, Awatif Jahman Alqarni, Mona Alsulami, AA Al Qarni, Anusmita Das, Evren Hinçal

引用次数: 0

Information overflow between monetary policy transparency and inflation expectations using multivariate stochastic volatility models 基于多元随机波动模型的货币政策透明度与通胀预期之间的信息溢出

Applied mathematics in science and engineering Pub Date : 2023-09-25 DOI: 10.1080/27690911.2023.2253968

Qizhi He, Mati ur Rahman, Cuihua Xie

{"title":"Information overflow between monetary policy transparency and inflation expectations using multivariate stochastic volatility models","authors":"Qizhi He, Mati ur Rahman, Cuihua Xie","doi":"10.1080/27690911.2023.2253968","DOIUrl":"https://doi.org/10.1080/27690911.2023.2253968","url":null,"abstract":"The forward-looking policy is useful for joint decision-making between public and monetary authorities. The study calculates the monetary policy transparency index, inflation expectations, and their volatility spillover effects at a data-driven angle. Optimization mechanisms of monetary policy transparency influencing inflation and inflation expectations volatility, and transparency index based on market participants’ optimization decisions are analysed. Multivariate stochastic volatility models for measuring the volatility of inflation and inflation expectations are analysed. Additionally, the relationships between inflation and inflation expectations volatility and transparency are tested empirically. Tests show that: first, the most suitable models for measuring volatility of inflation and inflation expectations are obtained. Second, monetary policy transparency has a negative effect on the volatility of inflation and inflation expectations. Third, there is a unidirectional Granger relationship from the volatility of inflation expectations to the volatility of inflation, and it indicates that the volatility of inflation expectations has an important guiding effect on that of inflation, and it is necessary to stabilize inflation expectations for stabilizing inflation. Fourth, improving monetary policy transparency can not only reduce inflation, inflation expectations, inflation volatility, inflation expectations volatility, but also reduce the sacrifice rate, that is, to stabilize the price level with less anti-inflation costs.","PeriodicalId":475946,"journal":{"name":"Applied mathematics in science and engineering","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135816634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Homotopy decomposition method to analysis fractional hepatitis B virus infection model 同伦分解法分析乙型肝炎病毒分式感染模型

Applied mathematics in science and engineering Pub Date : 2023-09-24 DOI: 10.1080/27690911.2023.2260075

M. M. Gour, L. K. Yadav, S. D. Purohit, D. L. Suthar

{"title":"Homotopy decomposition method to analysis fractional hepatitis B virus infection model","authors":"M. M. Gour, L. K. Yadav, S. D. Purohit, D. L. Suthar","doi":"10.1080/27690911.2023.2260075","DOIUrl":"https://doi.org/10.1080/27690911.2023.2260075","url":null,"abstract":"Mathematical models have been employed to investigate the factors that govern the progression of infectious diseases in viral infections. This article investigates a fractionalised model for hepatitis B virus infection, curing infected cells. We analysed the fractional hepatitis B virus infection model using the homotopy decomposition method (HDM). Additionally, the existence and uniqueness of the fractional model are considered. The graphical solutions depicted that when introducing a fractional-order derivative to the model, the peak of viral propagation is reduced, and cell damage is minimised by initiating treatment at an early stage; however, the disease takes a longer time to be eradicated. The outcomes may also be valuable in the fields of clinical science and medicine. This model provided insights into the natural history of HBV infection, including the different stages of infection (acute, chronic, and resolved) and the likelihood of progression from one stage to another. This information is essential for predicting disease outcomes and planning appropriate clinical management for patients.","PeriodicalId":475946,"journal":{"name":"Applied mathematics in science and engineering","volume":"2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135926165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Some identities on degenerate poly-Euler polynomials arising from degenerate polylogarithm functions 由退化多对数函数引起的退化多欧拉多项式的一些恒等式

Applied mathematics in science and engineering Pub Date : 2023-09-15 DOI: 10.1080/27690911.2023.2257369

Lingling Luo, Yuankui Ma, Taekyun Kim, Hongze Li

引用次数: 0

Arf numerical semigroups with high multiplicity via Gröbner basis 基于Gröbner基的高重性数值半群

Applied mathematics in science and engineering Pub Date : 2023-09-14 DOI: 10.1080/27690911.2023.2252978

Belgin Özer

引用次数: 0