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Tamkang Journal of Mathematics最新文献

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Position Vectors of Curves Generalizing General Helices and Slant Helices in Euclidean 3-Space 欧几里德三维空间中推广一般螺旋和斜螺旋曲线的位置向量
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3463
M. Izid, Abderrazak El Haimi, A. O. Chahdi
{"title":"Position Vectors of Curves Generalizing General Helices and Slant Helices in Euclidean 3-Space","authors":"M. Izid, Abderrazak El Haimi, A. O. Chahdi","doi":"10.5556/J.TKJM.52.2021.3463","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3463","url":null,"abstract":"In this paper, we give a new characterization of a k-slant helix which is a generalization of general helix and slant helix. Thereafter, we construct a vector differential equation of the third order to determine the parametric representation of a k-slant helix according to standard frame in Euclidean 3-space. Finally, we apply this method to find the position vector of some examples of 2-slant helix by means of intrinsic equations.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"32 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90479891","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
Characterization of a New Family of Distribution Through Upper Record Values 用上记录值刻画一个新的分布族
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3253
M. I. Khan
{"title":"Characterization of a New Family of Distribution Through Upper Record Values","authors":"M. I. Khan","doi":"10.5556/J.TKJM.52.2021.3253","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3253","url":null,"abstract":"In this paper, a new class of distribution has been characterized through the condi- tional expectations, conditioned on a non-adjacent upper record value. Also an equivalence between the unconditional and conditional expectation is used to characterize the new class of distribution.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"20 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73758992","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
An Iterative Method for a Common Solution of a Combination of the Split Equilibrium Problem, a Finite Family of Nonexpansive Mapping and a Combination of Variational Inequality Problem 分裂平衡问题、有限族非扩张映射和变分不等式组合问题的公共解的迭代方法
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3563
Ihssane Hay, A. Bnouhachem, T. Rassias
{"title":"An Iterative Method for a Common Solution of a Combination of the Split Equilibrium Problem, a Finite Family of Nonexpansive Mapping and a Combination of Variational Inequality Problem","authors":"Ihssane Hay, A. Bnouhachem, T. Rassias","doi":"10.5556/J.TKJM.52.2021.3563","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3563","url":null,"abstract":"The present paper aims to deal with an iterative algorithm for finding common solution of the combination of the split equilibrium problem and a finite family of non-expansive mappings and the combination of variational inequality problem in the setting of real Hilbert spaces. Further, we prove that the sequences generated by the proposed iterative method converge strongly to a common solution to these problems. A numerical example is presented to illustrate the proposed method and convergence result. The results and method presented in this paper generalize, extend and unify some known results in the literatures.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"124 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86434026","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
Line Graph Associated to Graph of a Near-Ring with Respect to an Ideal 关于理想的近环图的线形图
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3326
Moytri Sarmah
{"title":"Line Graph Associated to Graph of a Near-Ring with Respect to an Ideal","authors":"Moytri Sarmah","doi":"10.5556/J.TKJM.52.2021.3326","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3326","url":null,"abstract":"Let N be a near-ring and I be an ideal of N. The graph of N with respect to I is a graph with V (N ) as vertex set and any two distinct vertices x and y are adjacent if and only if xNy ⊆ I oryNx ⊆ I. This graph is denoted by GI(N). We define the line graph of GI(N) as a graph with each edge of GI (N ) as vertex and any two distinct vertices are adjacent if and only if their corresponding edges share a common vertex in the graph GI (N ). We denote this graph by L(GI (N )). We have discussed the diameter, girth, clique number, dominating set of L(GI(N)). We have also found conditions for the graph L(GI(N)) to be acycle graph.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"35 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81336128","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 Common Solution of Equilibrium, Constrained Convex Minimization, and Fixed Point Problems 平衡、约束凸最小化和不动点问题的一般解
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3521
M. Yazdi
{"title":"A Common Solution of Equilibrium, Constrained Convex Minimization, and Fixed Point Problems","authors":"M. Yazdi","doi":"10.5556/J.TKJM.52.2021.3521","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3521","url":null,"abstract":"\u0000\u0000\u0000In this paper, we propose a new iterative scheme with the help of the gradient- projection algorithm (GPA) for finding a common solution of an equilibrium problem, a constrained convex minimization problem, and a fixed point problem. Then, we prove some strong convergence theorems which improve and extend some recent results. Moreover, we give a numerical result to show the validity of our main theorem. \u0000\u0000\u0000","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"89 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86575172","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
*-Weyl Curvature Tensor within the Framework of Sasakian and $(kappa,mu)$-Contact Manifolds *- sasaki和$(kappa,mu)$框架内的weyl曲率张量-接触流形
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3440
V. Venkatesha, H. Kumara
{"title":"*-Weyl Curvature Tensor within the Framework of Sasakian and $(kappa,mu)$-Contact Manifolds","authors":"V. Venkatesha, H. Kumara","doi":"10.5556/J.TKJM.52.2021.3440","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3440","url":null,"abstract":"The object of the present paper is to study $*$-Weyl curvature tensor within the framework of Sasakian and $(kappa,mu)$-contact manifolds.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"325 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89594316","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
P53-Mdm2 Loop Stability and Oscillatory Dynamics with Mdm2-Induced Delay Effect in P53 P53- mdm2环稳定性和振荡动力学与mdm2诱导的延迟效应
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-05 DOI: 10.5556/J.TKJM.52.2021.3714
M. Y. Baba, M. Saleem, Abdur Raheem
{"title":"P53-Mdm2 Loop Stability and Oscillatory Dynamics with Mdm2-Induced Delay Effect in P53","authors":"M. Y. Baba, M. Saleem, Abdur Raheem","doi":"10.5556/J.TKJM.52.2021.3714","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3714","url":null,"abstract":"In this paper, we consider P53-Mdm2 negative feedback loop supposed to be the core circuit of genome. We study stability and the oscillatory dynamics of the loop. Many of the studies modeled this loop by delay-differential equations with P53-induced transcrip- tional delay in the production of Mdm2. We, however, highlight the importance of Mdm2- induced delay in the degradation of P53 protein. We consider two forms of P53 protein i.e., plain P53 and active P53 along with its principal antagonist protein Mdm2 to formulate a minimal model. Active P53 finds its inclusion in the loop in the presence of DNA damage represented by a Boolean variable ‘s’. The analysis of the model provides thresholds on delays using Nyquist criterion such that delays in the degradation of P53 lower than these thresholds guarantee stability of the loop in that all proteins plain P53, active P53 and Mdm2 approach to stable equilibrium state. The oscillatory dynamics in proteins, if any, would exist beyond these thresholds.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88708577","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
Strongly Starlike Functions and Related Classes 强星形函数和相关类
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-04 DOI: 10.5556/J.TKJM.52.2021.3271
M. Nunokawa, J. Sokół
{"title":"Strongly Starlike Functions and Related Classes","authors":"M. Nunokawa, J. Sokół","doi":"10.5556/J.TKJM.52.2021.3271","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3271","url":null,"abstract":"We consider  univalent functions, analytic in the unit disc $ |z|<1$in the complex plane ${mathbb{C}}$ which map $ |z|<1$ onto a domainwith some nice property. The purpose of this paper is to find somenew conditions for strong starlikeness and some related results.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"92 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77274681","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 Principal Eigenvalue Problems for Perturbed Fractional Laplace Operators 摄动分数阶拉普拉斯算子的主特征值问题
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-04 DOI: 10.5556/J.TKJM.52.2021.3209
Guangyu Zhao
{"title":"The Principal Eigenvalue Problems for Perturbed Fractional Laplace Operators","authors":"Guangyu Zhao","doi":"10.5556/J.TKJM.52.2021.3209","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3209","url":null,"abstract":"We study a variety of basic properties of the principal eigenvalue of a perturbed fractional Laplace operator and weakly coupled cooperative systems involving fractional Laplace operators. Our work extends a number of well-known properties regarding the principal eigenvalues of linear second-order elliptic operators with Dirichlet boundary condition to perturbed fractional Laplace operators. The establish results are also utilized to investigate the spatio-temporary dynamics of population models.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"1 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78574260","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: 2
Approximation of Functions in Besov Space Besov空间中函数的逼近
IF 0.6
Tamkang Journal of Mathematics Pub Date : 2021-02-04 DOI: 10.5556/J.TKJM.52.2021.3270
H. K. Nigam, Supriya Rani
{"title":"Approximation of Functions in Besov Space","authors":"H. K. Nigam, Supriya Rani","doi":"10.5556/J.TKJM.52.2021.3270","DOIUrl":"https://doi.org/10.5556/J.TKJM.52.2021.3270","url":null,"abstract":"In the present paper, we establish a theorem on best approximation of a function g ∈ Bqλ(Lr) of its Fourier series. Our main theorem generalizes some known results of this direction of work. Thus, the results of [10], [26] and [27] become the particular case of our main Theorem 3.1.","PeriodicalId":45776,"journal":{"name":"Tamkang Journal of Mathematics","volume":"8 1","pages":""},"PeriodicalIF":0.6,"publicationDate":"2021-02-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76691835","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
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