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Armenian Journal of Mathematics最新文献

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The soft Jacobson radical of a commutative ring 交换环的软Jacobson根
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-12-21 DOI: 10.52737/18291163-2021.13.11-1-9
Jayanta Ghosh, D. Mandal, T. Samanta
{"title":"The soft Jacobson radical of a commutative ring","authors":"Jayanta Ghosh, D. Mandal, T. Samanta","doi":"10.52737/18291163-2021.13.11-1-9","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.11-1-9","url":null,"abstract":"In this paper, the notion of the soft Jacobson radical of a ring is defined. A relationship between the soft Jacobson radical of a ring and Jacobson semisimple ring is established. Some properties of this notion have been studied under homomorphism.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46868143","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
Independence of the Axioms of Hypergroup over the Group 超群公理对群的独立性
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-12-21 DOI: 10.52737/18291163-2021.13.12-1-11
Sh. Navasardyan
{"title":"Independence of the Axioms of Hypergroup over the Group","authors":"Sh. Navasardyan","doi":"10.52737/18291163-2021.13.12-1-11","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.12-1-11","url":null,"abstract":"The independence of the axioms of hypergroup over the group is proven. The proof is composed of two parts. In the first part, the independence of the axioms $(P3), (A1), (A3), (A5)$ in the system of axioms of hypergroup over the group is shown by fixing the structural mappings $Phi$ and $Xi$. In the same way, in the second part of the proof, the independence of the axioms $(P1), (P2), (A2), (A4)$ is shown by fixing $Psi$ and $Lambda$.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43303500","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 the Convergence of the Quasi-Periodic Approximations on a Finite Interval 有限区间上拟周期逼近的收敛性
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-12-10 DOI: 10.52737/18291163-2021.13.10-1-44
A. Poghosyan, Lusine Poghosyan, R. Barkhudaryan
{"title":"On the Convergence of the Quasi-Periodic Approximations on a Finite Interval","authors":"A. Poghosyan, Lusine Poghosyan, R. Barkhudaryan","doi":"10.52737/18291163-2021.13.10-1-44","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.10-1-44","url":null,"abstract":"We investigate the convergence of the quasi-periodic approximations in different frameworks and reveal exact asymptotic estimates of the corresponding errors. The estimates facilitate a fair comparison of the quasi-periodic approximations to other classical well-known approaches. We consider a special realization of the approximations by the inverse of the Vandermonde matrix, which makes it possible to prove the existence of the corresponding implementations, derive explicit formulas and explore convergence properties. We also show the application of polynomial corrections for the convergence acceleration of the quasi-periodic approximations. Numerical experiments reveal the auto-correction phenomenon related to the polynomial corrections so that utilization of approximate derivatives surprisingly results in better convergence compared to the expansions with the exact ones.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44986222","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
Identities involving skew Lie product and a pair of generalized derivations in prime rings with involution 包含斜李积的恒等式和对合素数环上的一对广义导数
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-11-04 DOI: 10.52737/18291163-2021.13.9-1-18
Bharat Bhushan, G. Sandhu, D. Kumar
{"title":"Identities involving skew Lie product and a pair of generalized derivations in prime rings with involution","authors":"Bharat Bhushan, G. Sandhu, D. Kumar","doi":"10.52737/18291163-2021.13.9-1-18","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.9-1-18","url":null,"abstract":"In this paper, we consider skew Lie product on an involutive ring and study several algebraic identities for it, which include generalized derivations of the ring. The results give information about the commutativity of the ring and a description of the generalized derivations.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48685597","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
Existence and Ulam Stability of Solution for Some Backward Impulsive Differential Equations on Banach Spaces Banach空间上一些倒向脉冲微分方程解的存在性和Ulam稳定性
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-11-04 DOI: 10.52737/18291163-2021.13.8-1-21
Abdelouahab Mahmoudi, A. Kessi
{"title":"Existence and Ulam Stability of Solution for Some Backward Impulsive Differential Equations on Banach Spaces","authors":"Abdelouahab Mahmoudi, A. Kessi","doi":"10.52737/18291163-2021.13.8-1-21","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.8-1-21","url":null,"abstract":"In this paper, we study the existence and the Ulam stability of a solution to nonlinear backward impulsive differential equations with local or nonlocal conditions in Banach spaces. Using well-known classical fixed point theorems, we prove the existence of a solution. Subsequently, we prove the generalized Ulam-Hyers-Rassias stability of the solution to the problem. The obtained results are illustrated by some examples.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46930813","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
Strong convergence algorithm for the split problem of variational inclusions, split generalized equilibrium problem and fixed point problem 变分包体分裂问题、分裂广义平衡问题和不动点问题的强收敛算法
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-11-03 DOI: 10.52737/18291163-2021.13.7-1-32
S. Husain, Mohd Asad, Mubashshir U. Khairoowala
{"title":"Strong convergence algorithm for the split problem of variational inclusions, split generalized equilibrium problem and fixed point problem","authors":"S. Husain, Mohd Asad, Mubashshir U. Khairoowala","doi":"10.52737/18291163-2021.13.7-1-32","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.7-1-32","url":null,"abstract":"The purpose of this paper is to recommend an iterative scheme to approximate a common element of the solution sets of the split problem of variational inclusions, split generalized equilibrium problem and fixed point problem for non-expansive mappings. We prove that the sequences generated by the recommended iterative scheme strongly converge to a common element of solution sets of stated split problems. In the end, we provide a numerical example to support and justify our main result. The result studied in this paper generalizes and extends some widely recognized results in this direction.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-11-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44472464","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 the divergence of Fourier series in the general Haar system 关于一般Haar系统中傅立叶级数的发散性
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-09-24 DOI: 10.52737/18291163-2021.13.6-1-10
M. Grigoryan, A. Maranjyan
{"title":"On the divergence of Fourier series in the general Haar system","authors":"M. Grigoryan, A. Maranjyan","doi":"10.52737/18291163-2021.13.6-1-10","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.6-1-10","url":null,"abstract":"For any countable set $D subset [0,1]$, we construct a bounded measurable function $f$ such that the Fourier series of $f$ with respect to the regular general Haar system is divergent on $D$ and convergent on $[0,1]backslash D$.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-09-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45292389","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
Weighted integral representations of harmonic functions in the unit disc by means of Mittag-Leffler type kernels 用Mittag-Leffler型核表示单位圆盘中调和函数的加权积分
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-09-03 DOI: 10.52737/18291163-2021.13.5-1-11
F. Hayrapetyan
{"title":"Weighted integral representations of harmonic functions in the unit disc by means of Mittag-Leffler type kernels","authors":"F. Hayrapetyan","doi":"10.52737/18291163-2021.13.5-1-11","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.5-1-11","url":null,"abstract":"For weighted $L^p$-classes of functions harmonic in the unit disc, we obtain a family of weighted integral representations with weight function of the type $|w|^{2varphi}cdot(1-|w|^{2rho})^{beta}$.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49083615","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
Hermitian Toeplitz determinants for the class S of univalent functions 单价函数类S的Hermitian Toeplitz行列式
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-07-23 DOI: 10.52737/18291163-2021.13.4-1-10
M. Obradovic, N. Tuneski
{"title":"Hermitian Toeplitz determinants for the class S of univalent functions","authors":"M. Obradovic, N. Tuneski","doi":"10.52737/18291163-2021.13.4-1-10","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.4-1-10","url":null,"abstract":"Introducing a new method, we give sharp estimates of the Hermitian Toeplitz determinants of third order for the class S of functions univalent in the unit disc. The new approach is also illustrated on some subclasses of the class S.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43935058","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: 11
Viscosity approximation method for solving variational inequality problem in real Banach spaces 求解实Banach空间中变分不等式问题的粘滞近似方法
IF 0.4
Armenian Journal of Mathematics Pub Date : 2021-07-15 DOI: 10.52737/18291163-2021.13.3-1-20
G. C. Ugwunnadi
{"title":"Viscosity approximation method for solving variational inequality problem in real Banach spaces","authors":"G. C. Ugwunnadi","doi":"10.52737/18291163-2021.13.3-1-20","DOIUrl":"https://doi.org/10.52737/18291163-2021.13.3-1-20","url":null,"abstract":"In this paper, we study the implicit and inertial-type viscosity approximation method for approximating a solution to the hierarchical variational inequality problem. Under some mild conditions on the parameters, we prove that the sequence generated by the proposed methods converges strongly to a solution of the above-mentioned problem in $q$-uniformly smooth Banach spaces. The results obtained in this paper generalize and improve many recent results in this direction.","PeriodicalId":42323,"journal":{"name":"Armenian Journal of Mathematics","volume":null,"pages":null},"PeriodicalIF":0.4,"publicationDate":"2021-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42557416","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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