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Electronic journal of mathematical analysis and applications最新文献

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A revisit of the modified Celebioglu-Cuadras copula 改良的Celebioglu-Cuadras copula的再探讨
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.211047.1035
C. Chesneau
{"title":"A revisit of the modified Celebioglu-Cuadras copula","authors":"C. Chesneau","doi":"10.21608/ejmaa.2023.211047.1035","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.211047.1035","url":null,"abstract":". In recent years, efforts have been made to improve the scope of modeling the dependence of well-known copulas by modifying their mathematical structure. This was the case, among others, of the so-called Celebioglu-Cuadras copula. In this article, we make contributions to this subject by (i) significantly improving an existing result from the literature on the admissible values for a modified version of the Celebioglu-Cuadras copula and (ii) studying a generalization of this modified copula using an additional setting shape parameter. The characteristics of the introduced copulas are discussed, including the shapes of the copula-related functions, various symmetry and dependence structure types, copula inequalities, diverse correlation measures, and bivariate distribution generation. In particular, we highlight the fact that they are ideal for modeling a wide variety of negative-type dependencies and offer an interesting alternative to the Celebioglu-Cuadras and Gumbel-Barnett copulas. Several graphics are produced, and digital work is carried out as support.","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46111062","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: 1
On spatio-temporal dynamics of COVID-19 epidemic 𝑆𝐸_1𝐸_2𝐼_1𝐼_2𝑅𝑆 model incorporating virus mutations and vaccinations effects 新冠肺炎疫情时空动态研究𝑆𝐸_1.𝐸_2.𝐼_1.𝐼_2.𝑅𝑆 结合病毒突变和疫苗接种效果的模型
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.228645.1056
A. Elsadany, Sara Aljuaidi, A. Elsonbaty, A. Aldurayhim
{"title":"On spatio-temporal dynamics of COVID-19 epidemic 𝑆𝐸_1𝐸_2𝐼_1𝐼_2𝑅𝑆 model incorporating virus mutations and vaccinations effects","authors":"A. Elsadany, Sara Aljuaidi, A. Elsonbaty, A. Aldurayhim","doi":"10.21608/ejmaa.2023.228645.1056","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.228645.1056","url":null,"abstract":"This work is devoted to present temporal-only and spatio-temporal COVID-19 epidemic models when virus mutations and vaccination in uences are considered. Firstly, the proposed non-di usive COVID19 model is introduced. The nonlinear incidence rate is employed to better model the strict measures forced by governmental authorities to control pandemic spread. The immunity acquired by vaccinations are assumed to be incomplete for realistic considerations. The existence, uniqueness and continuous dependence on initial conditions are studied for the solution. The study of stability along with bifurcation analysis are carried out to investigate the in uences of variations in model’s parameters. Moreover, the basic reproduction number is obtained for the proposed model. The stability regions for equilibrium points are depicted in space of parameters to explore their e ects. Secondly, the di usive version of the model is considered where possible occurrence of Turing instability is investigated. Finally, numerical simulations are employed to verify theoretical results of the work.","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43625409","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
Twice Differentiable Ostrowski Type Tensorial Norm Inequality for Continuous Functions of Selfadjoint Operators in Hilbert Spaces Hilbert空间中自伴随算子连续函数的二次可微Ostrowski型张量范数不等式
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.199881.1014
Vuk Stojiljkovic
{"title":"Twice Differentiable Ostrowski Type Tensorial Norm Inequality for Continuous Functions of Selfadjoint Operators in Hilbert Spaces","authors":"Vuk Stojiljkovic","doi":"10.21608/ejmaa.2023.199881.1014","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.199881.1014","url":null,"abstract":"","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135762096","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
Cryptography utilizing the Affine-Hill cipher and Extended Generalized Fibonacci matrices 利用仿射Hill密码和扩展广义Fibonacci矩阵的密码学
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.295792
Vaishali Billore, Naresh Patel
{"title":"Cryptography utilizing the Affine-Hill cipher and Extended Generalized Fibonacci matrices","authors":"Vaishali Billore, Naresh Patel","doi":"10.21608/ejmaa.2023.295792","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.295792","url":null,"abstract":"","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44025389","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: 1
COLLOCATION COMPUTATIONAL ALGORITHM FOR VOLTERRA-FREDHOLM INTEGRO-DIFFERENTIAL EQUATIONS volterra-fredholm积分微分方程的配置计算算法
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.207101.1030
T. Oyedepo, C. Ishola, A. Ayoade, G. Aji̇leye
{"title":"COLLOCATION COMPUTATIONAL ALGORITHM FOR VOLTERRA-FREDHOLM INTEGRO-DIFFERENTIAL EQUATIONS","authors":"T. Oyedepo, C. Ishola, A. Ayoade, G. Aji̇leye","doi":"10.21608/ejmaa.2023.207101.1030","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.207101.1030","url":null,"abstract":". In this study, we present a collocation computational technique for solving Volterra-Fredholm Integro-Differential Equations (VFIDEs) via fourth kind Chebyshev polynomials as basis functions. The method assumed an approximate solution by means of the fourth kind Chebyshev polynomials, which were then substituted into the Volterra-Fredholm Integro-Differential Equations (VFIDEs) under consideration. Thereafter, the resulting equation is collocated at equally spaced points, which results in a system of linear algebraic equations with the unknown Chebyshev coefficients. The system of equations is then solved using the matrix inversion approach to obtain the unknown constants. The unknown constants are then substituted into the assumed approximate solution to obtain the required approximate solution. To test for the accuracy and efficiency of the scheme, six numerical examples were solved, and the results obtained show the method performs excellently compared to the results in the literature. Also, tables are used to outline the methods accuracy and efficiency.","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47179119","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
RESULTS ON CERTAIN DIFFERENTIAL POLYNOMIALS OF L-FUNCTIONS SHARING A FINITE VALUE 共享有限值的l -函数微分多项式的若干结果
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.207356.1031
Priyanka V
{"title":"RESULTS ON CERTAIN DIFFERENTIAL POLYNOMIALS OF L-FUNCTIONS SHARING A FINITE VALUE","authors":"Priyanka V","doi":"10.21608/ejmaa.2023.207356.1031","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.207356.1031","url":null,"abstract":". In this Article, we analyses a uniqueness of meromorphic functions of certain differential polynomials that share a nonzero finite value or have the same fixed points with the same of L-functions. The results in this paper extend the corresponding results from Xiao-Min Li, Fang Liu, Hong-Xun .","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135806205","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
SECOND ORDER HANKEL DETERMINANTS FOR CLASS OF BOUNDED TURNING FUNCTIONS DEFINED BY SĂLĂGEAN DIFFERENTIAL OPERATOR 由sĂlĂgean微分算子定义的一类有界转动函数的二阶汉克尔行列式
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.303645
Hussaini Joshua, A. Adeniji, M. Mogbonju, M. Hameed
{"title":"SECOND ORDER HANKEL DETERMINANTS FOR CLASS OF BOUNDED TURNING FUNCTIONS DEFINED BY SĂLĂGEAN DIFFERENTIAL OPERATOR","authors":"Hussaini Joshua, A. Adeniji, M. Mogbonju, M. Hameed","doi":"10.21608/ejmaa.2023.303645","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.303645","url":null,"abstract":". In this paper, a brief study of certain properties of bounded turning functions is carried out. Furthermore, bound to the famous Fekete - Szego functional H 2 (1) = | a 3 − ta 22 | , with t real and the Second Hankel Determinant H 2 (2) = | a 2 a 4 − a 23 | for functions of bounded turning of order β associated with Salagean differential operator are obtained using a succinct mathematical approach.","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42061396","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
Numerical Schemes for Black-Scholes Equation with Error Dynamics 具有误差动力学的Black-Scholes方程的数值格式
Electronic journal of mathematical analysis and applications Pub Date : 2023-07-01 DOI: 10.21608/ejmaa.2023.216295.1037
Tejal Shah, J. Sharma
{"title":"Numerical Schemes for Black-Scholes Equation with Error Dynamics","authors":"Tejal Shah, J. Sharma","doi":"10.21608/ejmaa.2023.216295.1037","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.216295.1037","url":null,"abstract":". This paper focuses on the numerical solution of the Black-Scholes equation (BSE), which is used in finance to price options. The modified version of BSE to heat equation is subjected to two-time level finite difference method such as the Crank-Nicolson method and three-time level finite difference method such as the DuFort-Frankel method. The error dynamics is represented by the Global Spectral Analysis (GSA) method, which contradict the error dynamics of the von Neumann method, where the signal and error follow the same difference equation. For different maturities, volatilities and interest rates, both techniques are tested for accuracy. For the converted heat equation of BSE, the three-time level method is determined to be more accurate than the two-time level method. Finally, we conclude that risk can be reduced by short-term investment in a low interest, high-volatility market with a good approximation using the three-time level finite difference method for European call option for converted BSE to heat equation.","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-07-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46942821","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 dynamics of a Riccati differential equation with perturbed delay A. M. A. EL-SAYED, S. M. SALMAN, A. A. F. ABDELFATTAH 关于具有扰动时滞的Riccati微分方程的动力学a.M.a.EL-SAYED，S.M.SALMAN，a.a.F.ABDELFATTAH
Electronic journal of mathematical analysis and applications Pub Date : 2023-01-01 DOI: 10.21608/ejmaa.2023.192905.1007
A. El-Sayed, S. Salman, AbdAllah A. F. AbdElfattah
{"title":"On the dynamics of a Riccati differential equation with perturbed delay A. M. A. EL-SAYED, S. M. SALMAN, A. A. F. ABDELFATTAH","authors":"A. El-Sayed, S. Salman, AbdAllah A. F. AbdElfattah","doi":"10.21608/ejmaa.2023.192905.1007","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.192905.1007","url":null,"abstract":"","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"68493491","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
PROPERTIES OF THE DIRICHLET KERNEL JOSEFINA ALVAREZ AND MARTHA GUZMÁN-PARTIDA DIRICHLET核的性质
Electronic journal of mathematical analysis and applications Pub Date : 2023-01-01 DOI: 10.21608/ejmaa.2023.284574
{"title":"PROPERTIES OF THE DIRICHLET KERNEL JOSEFINA ALVAREZ AND MARTHA GUZMÁN-PARTIDA","authors":"","doi":"10.21608/ejmaa.2023.284574","DOIUrl":"https://doi.org/10.21608/ejmaa.2023.284574","url":null,"abstract":"","PeriodicalId":91074,"journal":{"name":"Electronic journal of mathematical analysis and applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43983750","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
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