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Iranian Journal of Mathematical Sciences and Informatics最新文献

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A STUDY OF SOME PROPERTIES FOR CELLULAR-LINDELOF TOPOLOGICAL SPACES 元胞-林德洛夫拓扑空间若干性质的研究
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-12-31 DOI: 10.46754/jmsi.2022.12.006
Yeoh Wei, Z. Salleh
{"title":"A STUDY OF SOME PROPERTIES FOR CELLULAR-LINDELOF TOPOLOGICAL SPACES","authors":"Yeoh Wei, Z. Salleh","doi":"10.46754/jmsi.2022.12.006","DOIUrl":"https://doi.org/10.46754/jmsi.2022.12.006","url":null,"abstract":"Based on Bella and Spadaro (2017), a topological space T is called cellular-Lindelof if for every family F of pairwise disjoint nonempty open subsets of T, there exists a Lindelof subspace L subset T such that F intersection L ≠ empty set for every F∈F. \u0000The aim of this paper is to investigate the properties of cellular Lindelof spaces, its relation with other spaces and find cardinal inequality for cellular-Lindelof spaces based on the Erdos and Rado theorem. The concept of cellular-Lindelof was utilized to show the properties of cellular-Lindelof spaces and its relation with other spaces. We obtain few examples of topological spaces which are not cellular-Lindelof. Erdos and Rado theorem is a theorem based on intersecting set families. Cardinal inequality that was found is based on lemma from Erdos and Rado theorem and information obtained from some journal papers. The study of cellular-Lindelof spaces is the extension study of Lindelof spaces and this is important as it can become a reference material for the future researchers. The central object of the study of topological dynamics is a topological dynamical system, where topological spaces needed. Thus, the study of cellular-Lindelof spaces is also important to the field of dynamical system.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"3 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88324990","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
A CONNECTION BETWEEN RICKART REAL C*-ALGEBRA AND ENVELOPING RICKART C*-ALGEBRA rickart实c *-代数与包络rickart c *-代数的联系
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-12-31 DOI: 10.46754/jmsi.2022.12.003
A.A. Rakhimov, N.V. Raxmonova, Z. Salleh
{"title":"A CONNECTION BETWEEN RICKART REAL C*-ALGEBRA AND ENVELOPING RICKART C*-ALGEBRA","authors":"A.A. Rakhimov, N.V. Raxmonova, Z. Salleh","doi":"10.46754/jmsi.2022.12.003","DOIUrl":"https://doi.org/10.46754/jmsi.2022.12.003","url":null,"abstract":"In the paper, Rickart complex and real C*-algebra are considered. For Rickart’s real C*-algebra, its connection with the enveloping (complex) C*-algebra is studied. It is shown that the fact that A is a Rickart real C*-algebra does not imply that a complexification A +i A of A is a Rickart (complex) C*-algebra. Proved that if A is a real C*-algebra and A +i A is a Rickart C*-algebra, then A +i A is a Rickart real C*-algebra. It is shown that there exists a Rickart real C*-algebra whose projection lattice is not complete.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"17 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81543675","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
EFFECT OF MARANGONI CONVECTION ON UNSTEADY SQUEEZED FLOW OF WATER BASE CNTS NANOFLUID IN THE PRESENCE OF MAGNETIC FIELD AND VARIABLE THERMAL CONDUCTIVITY OVER A STRETCHING SURFACE 磁场和变导热条件下马兰戈尼对流对水基碳纳米管在拉伸表面非定常挤压流动的影响
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-12-31 DOI: 10.46754/jmsi.2022.12.004
Ali Rehman, Z. Salleh, USMAN ALI
{"title":"EFFECT OF MARANGONI CONVECTION ON UNSTEADY SQUEEZED FLOW OF WATER BASE CNTS NANOFLUID IN THE PRESENCE OF MAGNETIC FIELD AND VARIABLE THERMAL CONDUCTIVITY OVER A STRETCHING SURFACE","authors":"Ali Rehman, Z. Salleh, USMAN ALI","doi":"10.46754/jmsi.2022.12.004","DOIUrl":"https://doi.org/10.46754/jmsi.2022.12.004","url":null,"abstract":"This research paper explains the effect of Marangoni convection on unsteady squeezing flow of water base CNTs for both MWCNT and SWCNT in the presence of magnetic field and variable thermal conductivity over a stretching surface. By using the similarity transformation, the partial differential equation is converted to nonlinear fourth order ordinary differential equations. The analytical method, namely Optimal Homotopic Analysis Method used to find the analytical solution of the nonlinear problem which analyze the problem. The result of important parameters for both velocity and temperature profiles are plotted and discussed. The BVPh 2.0 package is used to obtain the convergence of the problem up to 25 iteration. The skin friction coefficient and Nusselt number is explained in table form.       ","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"105 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73692680","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
FORECASTING NIGERIAN ECONOMIC GROWTH BASED CORPORATE INCOME TAX 基于企业所得税预测尼日利亚经济增长
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-12-31 DOI: 10.46754/jmsi.2022.12.005
A. Sagir, S. Abdulazeez, Sani Ibrahim Doro
{"title":"FORECASTING NIGERIAN ECONOMIC GROWTH BASED CORPORATE INCOME TAX","authors":"A. Sagir, S. Abdulazeez, Sani Ibrahim Doro","doi":"10.46754/jmsi.2022.12.005","DOIUrl":"https://doi.org/10.46754/jmsi.2022.12.005","url":null,"abstract":"Developing countries like Nigeria have been hit hard by recent economic crises, and uncertainty is one of the characteristics that all prices and revenues share. A forecast of Nigerian economic growth was attempted using an artificial neural network (ANN) and statistical model to analyse the contribution of non-oil income tax generation to Nigerian economic development. While the primary objective is to develop and implement the proposed models capable of simulating a real non-oil income tax and evaluate their performances. The  dataset (Corporate Income Tax) from 2015–2020 was obtained from the National Bureau of Statistics of Nigeria (NBSN). Three training algorithms for ANN were adopted, such as conjugate gradient back-propagation with Fletcher-Reeves restarts, Bayesian regularisation, and gradient descent with an adaptive learning rate, whereas in the statistical part, multiple linear regressions were applied. Comparing all the models revealed that the Bayesian regularisation produced more accurate results than the other models.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":"93 1","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76674438","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
The Auslander-Reiten Conjecture for Group Rings 群环的Auslander-Reiten猜想
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-09-01 DOI: 10.52547/ijmsi.17.2.139
A. Bahlekeh
{"title":"The Auslander-Reiten Conjecture for Group Rings","authors":"A. Bahlekeh","doi":"10.52547/ijmsi.17.2.139","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.139","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47226852","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
Homomorphisms on Topological Groups from the Perspective of Bourbaki-boundedness 从bourbaki有界的角度看拓扑群上的同态
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-09-01 DOI: 10.52547/ijmsi.17.2.45
M. Moosaei, G. Rezaei, J. Jamalzadeh
{"title":"Homomorphisms on Topological Groups from the Perspective of Bourbaki-boundedness","authors":"M. Moosaei, G. Rezaei, J. Jamalzadeh","doi":"10.52547/ijmsi.17.2.45","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.45","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45428917","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
Higher Order Degenerate Hermite-Bernoulli Polynomials Arising from $p$-Adic Integrals on $mathbb{Z}_p$ 由$mathbb{Z}_p$上的$p$-进积分引起的高阶退化Hermite-Bernoulli多项式
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-09-01 DOI: 10.52547/ijmsi.17.2.171
W. A. Khan, H. Haroon
{"title":"Higher Order Degenerate Hermite-Bernoulli Polynomials Arising from $p$-Adic Integrals on $mathbb{Z}_p$","authors":"W. A. Khan, H. Haroon","doi":"10.52547/ijmsi.17.2.171","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.171","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48349784","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
Horadam Polynomials Estimates for $lambda$-Pseudo-Starlike Bi-Univalent Functions $lambda$-伪星形双一元函数的Horadam多项式估计
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-09-01 DOI: 10.52547/ijmsi.17.2.165
H. A. Hussein, A. Wanas
{"title":"Horadam Polynomials Estimates for $lambda$-Pseudo-Starlike Bi-Univalent Functions","authors":"H. A. Hussein, A. Wanas","doi":"10.52547/ijmsi.17.2.165","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.165","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44902946","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 Properties of Balancing and Lucas-Balancing $p$-Numbers 论平衡与Lucas-Balancing $p$-Numbers的性质
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-09-01 DOI: 10.52547/ijmsi.17.2.147
A. Behera, P. Ray
{"title":"On the Properties of Balancing and Lucas-Balancing $p$-Numbers","authors":"A. Behera, P. Ray","doi":"10.52547/ijmsi.17.2.147","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.147","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49055009","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
Transmission of Cholera Disease with Laplacian and Triangular Parameters 拉普拉斯和三角参数在霍乱传播中的应用
IF 0.5
Iranian Journal of Mathematical Sciences and Informatics Pub Date : 2022-09-01 DOI: 10.52547/ijmsi.17.2.289
M. Merdan, Z. Bekiryazici, T. Kesemen, T. Khaniyev
{"title":"Transmission of Cholera Disease with Laplacian and Triangular Parameters","authors":"M. Merdan, Z. Bekiryazici, T. Kesemen, T. Khaniyev","doi":"10.52547/ijmsi.17.2.289","DOIUrl":"https://doi.org/10.52547/ijmsi.17.2.289","url":null,"abstract":"","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.5,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49428896","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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