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Mathematical Models & Methods in Applied Sciences最新文献

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Existence and uniqueness of solutions for fractional differential equations with p-Laplacian operator and integral boundary conditions 具有p-拉普拉斯算子和积分边界条件的分数阶微分方程解的存在唯一性
1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.918553
Lijing Duan, Changhong Yang, Tianli Li, Jingli Xie
{"title":"Existence and uniqueness of solutions for fractional differential equations with p-Laplacian operator and integral boundary conditions","authors":"Lijing Duan, Changhong Yang, Tianli Li, Jingli Xie","doi":"10.12988/ams.2023.918553","DOIUrl":"https://doi.org/10.12988/ams.2023.918553","url":null,"abstract":"","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135446981","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Energy balance method for solving nonlinear oscillators with non-rational restoring force 求解具有非理性恢复力的非线性振子的能量平衡法
1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.918530
M. H. U. Molla, Nazmul Sharif
{"title":"Energy balance method for solving nonlinear oscillators with non-rational restoring force","authors":"M. H. U. Molla, Nazmul Sharif","doi":"10.12988/ams.2023.918530","DOIUrl":"https://doi.org/10.12988/ams.2023.918530","url":null,"abstract":"In this study, an extended energy balance method for solving nonlinear oscillators with non-rational restoring force has been presented. The classical energy balance methods cannot apply to solve nonlinear oscillators with non-rational restoring force. To overcome this difficulty, a laborious study is to be conducted to determine the solution technique that provides better results as well as requires minimum computational efforts. An example of complicated nonlinear oscillator with non-rational restoring force arising in the field of engineering and other disciplines has been provided. The accuracy of the approximate results has been compared with other existing results.","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136206973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Articulation point and weak point in a space and in a network in pretopology: the case of the strong connectivity 预拓扑中空间和网络的连接点和弱点:强连通性的情况
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917347
Monique Dalud-Vincent
{"title":"Articulation point and weak point in a space and in a network in pretopology: the case of the strong connectivity","authors":"Monique Dalud-Vincent","doi":"10.12988/ams.2023.917347","DOIUrl":"https://doi.org/10.12988/ams.2023.917347","url":null,"abstract":"In this paper, we present the concepts of articulation point and weak point in a space and in a network in Pretopology. We show, in the case of strong connectivity, some properties allowing to locate them in a network","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73480510","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 1
Heat transfer in viscous flow through a channel bounded by a flat deformable sheet and a naturally permeable bed 通过由可变形的平板和可自然渗透的床层为界的通道的粘性流动中的传热
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917392
Kishan Singh Shekhawat, Subhash Yadav
{"title":"Heat transfer in viscous flow through a channel bounded by a flat deformable sheet and a naturally permeable bed","authors":"Kishan Singh Shekhawat, Subhash Yadav","doi":"10.12988/ams.2023.917392","DOIUrl":"https://doi.org/10.12988/ams.2023.917392","url":null,"abstract":"In the present study, two-dimensional flow and heat transfer of a viscous fluid through a channel bounded by a flat deformable sheet and a naturally permeable bed is considered when the upper sheet and the lower bed are maintained at different temperatures. The results for temperature distribution, and rate of heat transfer have been obtained and discussed.","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81254013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Review on approximation approach for the distribution of the studentized mean 学生化均值分布的近似方法综述
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917267
Menus Nkurunziza, L. Vermeire
{"title":"Review on approximation approach for the distribution of the studentized mean","authors":"Menus Nkurunziza, L. Vermeire","doi":"10.12988/ams.2023.917267","DOIUrl":"https://doi.org/10.12988/ams.2023.917267","url":null,"abstract":"In case of a normal population the studentized sample mean has the Student distribution with the sample size minus one as degrees of freedom. Simulation reports in the literature concluded that this distribution may be hold on as an acceptable approximation, and is often better than the classical normal approximation, in case of a general finite variance population provided moderate to large sample size. We provide a mathematical proof and add simulation evidence. A comparison of the performances of both approximations for the true distribution of the studentized statistic is given for the cumulative distribution function and for the quantile function, by asymptotic expansions and by simulations. A population condition such that the student approximation is universally better than the normal approximation is obtained.","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81826009","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
A nonlinear dynamics for risk contagion: theoretical remarks 风险传染的非线性动力学:理论评述
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917465
M. Aliano, Lucianna Cananà, T. Ciano, M. Ferrara, S. Ragni
{"title":"A nonlinear dynamics for risk contagion: theoretical remarks","authors":"M. Aliano, Lucianna Cananà, T. Ciano, M. Ferrara, S. Ragni","doi":"10.12988/ams.2023.917465","DOIUrl":"https://doi.org/10.12988/ams.2023.917465","url":null,"abstract":"We employ an epidemiological approach to explain how risk may spread in a given economic system. Precisely, the analogy between economic systems and ecosystems is exploited and an original Susceptible-Infected-Recovered model with time delay is adopted to describe risk contagion by a nonlinear dynamics. The economic player population is","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85017129","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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: 1
The repression of online sexual blackmail of children in Burundian positive law 布隆迪实在法对网上儿童性勒索的压制
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917443
Donatien Ciza, Ildephonse Sindayigaya
{"title":"The repression of online sexual blackmail of children in Burundian positive law","authors":"Donatien Ciza, Ildephonse Sindayigaya","doi":"10.12988/ams.2023.917443","DOIUrl":"https://doi.org/10.12988/ams.2023.917443","url":null,"abstract":"In March 2022, the government of Burundi put in place a law on the prevention and repression of cybercrime. The purpose of this study is to analyze whether this law n°1/10 of March 22, 2022, on the prevention and repression of cybercrime incriminates one of the new forms of sexual exploitation and abuse of children in this informational world: the sexual blackmail of children online. A reading of paragraph six of the seventh section of this cybercrime law, entitled \"Threats, blackmail, and publication of rumors,\" might lead one to believe that Burundian lawmakers have criminalized acts of online blackmail. An analysis of the provisions of articles 50, 51, and 52 of this law on cybercrime reveals that acts of online blackmail are not criminalized, much fewer acts of sexual blackmail of children online. On the contrary, only threats with racist or xenophobic motivation, attacks against the confidentiality, integrity, and availability of data and computer systems, and the publication of rumors are criminalized.","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90877775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
New integral inequalities and generalizations of Huang-Du's integral inequality 新的积分不等式及黄度积分不等式的推广
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917393
Wei-Shih Du
{"title":"New integral inequalities and generalizations of Huang-Du's integral inequality","authors":"Wei-Shih Du","doi":"10.12988/ams.2023.917393","DOIUrl":"https://doi.org/10.12988/ams.2023.917393","url":null,"abstract":"The main purpose of this paper is the study of the generalization of some results given in [H. Huang, W.-S. Du, On a new integral inequality: Generalizations and applications, Axioms 11(9) (2022), 458]. New integral inequalities and some generalizations of Huang-Du’s integral inequalities are established","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75859349","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
International arbitration as a means of settling investment disputes under Burundian law 根据布隆迪法律，国际仲裁是解决投资争端的一种手段
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917321
Eraste Nzosaba
{"title":"International arbitration as a means of settling investment disputes under Burundian law","authors":"Eraste Nzosaba","doi":"10.12988/ams.2023.917321","DOIUrl":"https://doi.org/10.12988/ams.2023.917321","url":null,"abstract":"","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83791961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
Chebyshev systems obtained by translations of a single function 由单个函数的平移得到的切比雪夫系统
IF 3.5 1区 数学
Mathematical Models & Methods in Applied Sciences Pub Date : 2023-01-01 DOI: 10.12988/ams.2023.917397
K. Kitahara, Shiki Harada
{"title":"Chebyshev systems obtained by translations of a single function","authors":"K. Kitahara, Shiki Harada","doi":"10.12988/ams.2023.917397","DOIUrl":"https://doi.org/10.12988/ams.2023.917397","url":null,"abstract":"Let ϕ ( x ) be an n − 1 times continuously differentiable function on an open interval of R . In this note, we study a necessary and sufficient condition of ϕ ( x ) that a system { ϕ ( x − x 1 ) , . . . , ϕ ( x − x n ) } obtained by any distinct n points x 1 , . . . , x n is an extended complete Chebyshev system","PeriodicalId":49860,"journal":{"name":"Mathematical Models & Methods in Applied Sciences","volume":null,"pages":null},"PeriodicalIF":3.5,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84525570","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"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
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