发布求助
文献互助 智能选刊 最新文献

Kragujevac Journal of Mathematics最新文献

筛选
英文 中文
REFINING SOME INEQUALITIES FOR FRAMES WITH SPECHT’S RATIO 用SPECHT比率精化框架的一些不等式
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.039s
Fahimeh Sultanzadeh, M. Hassani, M. Omidvar, R. A. Kamyabi Gol
{"title":"REFINING SOME INEQUALITIES FOR FRAMES WITH SPECHT’S RATIO","authors":"Fahimeh Sultanzadeh, M. Hassani, M. Omidvar, R. A. Kamyabi Gol","doi":"10.46793/kgjmat2201.039s","DOIUrl":"https://doi.org/10.46793/kgjmat2201.039s","url":null,"abstract":"","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47538937","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
Some Results on Post-Widder Operators Preserving Test Function x^r 关于保检验函数x^r的后Widder算子的一些结果
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.149g
Vijay Gupta, G. Tachev
{"title":"Some Results on Post-Widder Operators Preserving Test Function x^r","authors":"Vijay Gupta, G. Tachev","doi":"10.46793/kgjmat2201.149g","DOIUrl":"https://doi.org/10.46793/kgjmat2201.149g","url":null,"abstract":"In the present paper, we consider Post-Widder operators and its modified form which preserve the test function xr, r ∈ ℕ. We estimate direct results in terms of modulus of continuity for the modified operators. Also, some estimates for polynomially bounded functions and linear combinations are considered. Our estimates improve in some sense the previous results for the original Post-Widder operators.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47715792","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: 5
Differential Subordination Results for Holomorphic Functions Related to Generalized Differential Operator 与广义微分算子相关的全纯函数的微分隶属结果
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.115w
A. Wanas
{"title":"Differential Subordination Results for Holomorphic Functions Related to Generalized Differential Operator","authors":"A. Wanas","doi":"10.46793/kgjmat2201.115w","DOIUrl":"https://doi.org/10.46793/kgjmat2201.115w","url":null,"abstract":"In the present investigation, we use the principle of subordination to introduce a new family for holomorphic functions defined by generalized differential operator. Also we establish some interesting geometric properties for functions belonging to this family.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46778050","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
New Integral Equations for the Monic Hermite Polynomials Monic-Hermite多项式的新积分方程
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.007k
K. A. Khelil, R. Sfaxi, Ammar Boukhemis
{"title":"New Integral Equations for the Monic Hermite Polynomials","authors":"K. A. Khelil, R. Sfaxi, Ammar Boukhemis","doi":"10.46793/kgjmat2201.007k","DOIUrl":"https://doi.org/10.46793/kgjmat2201.007k","url":null,"abstract":"In this article, we are study the question of existence of integral equation for the monic Hermite polynomials Hn, where the intervening real function does not depend on the index n, well-known by the linear functional Wx given by its moments Hn(x) = ⟨Wx, tn⟩, n ≥ 0, ♣x♣ < ∞. Also, we obtain some properties of the zeros of this intervening function. Furthermore, we obtain an integral representation of the Dirac mass δx, for every real number x.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44486256","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
CONNECTEDNESS OF THE CUT SYSTEM COMPLEX ON NONORIENTABLE SURFACES 非定向曲面上割系统复合体的连通性
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.021a
Fatema Ali, F. Atalan
{"title":"CONNECTEDNESS OF THE CUT SYSTEM COMPLEX ON NONORIENTABLE SURFACES","authors":"Fatema Ali, F. Atalan","doi":"10.46793/kgjmat2201.021a","DOIUrl":"https://doi.org/10.46793/kgjmat2201.021a","url":null,"abstract":"Let N be a compact, connected, nonorientable surface of genus g with n boundary components. In this note, we show that the cut system complex of N is connected for g < 4 and disconnected for g ≥ 4. We then define a related complex and show that it is connected for g ≥ 4.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45595053","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 Note on Comparison of Annuli Containing all the Zeros of a Polynomial 关于包含多项式所有零的Annuli的比较的一个注记
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.139h
S. Hans, Amit Tomar, Jianheng Chen
{"title":"A Note on Comparison of Annuli Containing all the Zeros of a Polynomial","authors":"S. Hans, Amit Tomar, Jianheng Chen","doi":"10.46793/kgjmat2201.139h","DOIUrl":"https://doi.org/10.46793/kgjmat2201.139h","url":null,"abstract":"If P(z) is a polynomial of degree n, then for a subclass of polynomials, Dalal and Govil [7] compared the bounds, containing all the zeros, for two different results with two different real sequences λk > 0, Pn k=1 λk = 1. In this paper, we prove a more general result, by which one can compare the bounds of two different results with the same sequence of real or complex λk, Pn k=0 ♣λk♣ ≤ 1. A variety of other results have been extended in this direction, which in particular include several known extensions and generalizations of a classical result of Cauchy [4], from this result by a fairly uniform manner.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46878560","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
UNIFORMLY CONVERGENT NUMERICAL METHOD FOR SINGULARLY PERTURBED DELAY PARABOLIC DIFFERENTIAL EQUATIONS ARISING IN COMPUTATIONAL NEUROSCIENCE 计算神经科学中奇异摄动时滞抛物型微分方程的一致收敛数值方法
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.065w
M. Woldaregay, G. Duressa
{"title":"UNIFORMLY CONVERGENT NUMERICAL METHOD FOR SINGULARLY PERTURBED DELAY PARABOLIC DIFFERENTIAL EQUATIONS ARISING IN COMPUTATIONAL NEUROSCIENCE","authors":"M. Woldaregay, G. Duressa","doi":"10.46793/kgjmat2201.065w","DOIUrl":"https://doi.org/10.46793/kgjmat2201.065w","url":null,"abstract":"The motive of this work is to develop ε-uniform numerical method for solving singularly perturbed parabolic delay differential equation with small delay. To approximate the term with the delay, Taylor series expansion is used. The resulting singularly perturbed parabolic differential equation is solved by using non-standard finite difference method in spatial direction and implicit Runge-Kutta method for the resulting system of IVPs in temporal direction. Theoretically the developed method is shown to be accurate of order O(N −1 + (∆t) 2 ) by preserving ε-uniform convergence. Two numerical examples are considered to investigate εuniform convergence of the proposed scheme and the result obtained agreed with the theoretical one","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49439647","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: 22
SOLUTION SET FOR IMPULSIVE FRACTIONAL DIFFERENTIAL INCLUSIONS 脉冲分数微分包含的解集
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.049b
M. Beddani
{"title":"SOLUTION SET FOR IMPULSIVE FRACTIONAL DIFFERENTIAL INCLUSIONS","authors":"M. Beddani","doi":"10.46793/kgjmat2201.049b","DOIUrl":"https://doi.org/10.46793/kgjmat2201.049b","url":null,"abstract":"This paper aims to an initial value problem for an impulsive fractional differential inclusion with the Riemann-Liouville fractional derivative. We apply Covitz and Nadler theorem concerning the study of the fixed point for multivalued maps to obtain the existence results for the given problems. We also obtain some topological properties about the solution set.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49608977","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
Paranormed Riesz Difference Sequence Spaces of Fractional Order 分数阶的副形Riesz差分序列空间
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-01-01 DOI: 10.46793/kgjmat2202.175y
Taja Yaying
{"title":"Paranormed Riesz Difference Sequence Spaces of Fractional Order","authors":"Taja Yaying","doi":"10.46793/kgjmat2202.175y","DOIUrl":"https://doi.org/10.46793/kgjmat2202.175y","url":null,"abstract":"","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70587729","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: 8
General Classes of Shrinkage Estimators for the Multivariate Normal Mean with Unknown Variance: Minimaxity and Limit of Risks Ratios 未知方差多元正态均值收缩估计的一般类别:风险比的极小值和极限
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-01-01 DOI: 10.46793/kgjmat2202.193b
A. Benkhaled, Abdenour Hamdaoui
{"title":"General Classes of Shrinkage Estimators for the Multivariate Normal Mean with Unknown Variance: Minimaxity and Limit of Risks Ratios","authors":"A. Benkhaled, Abdenour Hamdaoui","doi":"10.46793/kgjmat2202.193b","DOIUrl":"https://doi.org/10.46793/kgjmat2202.193b","url":null,"abstract":"","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":"1 1","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70587804","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: 7
首页 上一页
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整，为了账户安全，请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们：info@booksci.cn Book学术提供免费学术资源搜索服务，方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号：481959085
Book学术官方微信