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Kragujevac Journal of Mathematics最新文献

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Coefficient Estimates for Subclass of m-Fold Symmetric Bi- Univalent Functions m重对称双单价函数子类的系数估计
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-06-01 DOI: 10.46793/kgjmat2203.395m
A. Motamednezhad, S. Salehian, N. Magesh
{"title":"Coefficient Estimates for Subclass of m-Fold Symmetric Bi- Univalent Functions","authors":"A. Motamednezhad, S. Salehian, N. Magesh","doi":"10.46793/kgjmat2203.395m","DOIUrl":"https://doi.org/10.46793/kgjmat2203.395m","url":null,"abstract":"In the present paper, a general subclass Mh,p Σm (λ, γ) of the m-Fold symmetric bi-univalent functions is deĄned. Also, the estimates of the TaylorMaclaurin coefficients |am+1|, |a2m+1| and Fekete-Szegö problems are obtained for functions in this new subclass. The results presented in this paper would generalize and improve some recent works of several earlier authors.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47117025","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: 4
Bases of the Perturbed System of Exponents in Weighted Lebesgue Space with a General Weight 广义加权Lebesgue空间中指数扰动系统的基
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-06-01 DOI: 10.46793/kgjmat2203.477s
S. Sadigova, A. Guliyeva
{"title":"Bases of the Perturbed System of Exponents in Weighted Lebesgue Space with a General Weight","authors":"S. Sadigova, A. Guliyeva","doi":"10.46793/kgjmat2203.477s","DOIUrl":"https://doi.org/10.46793/kgjmat2203.477s","url":null,"abstract":"The weighted Lebesgue and Hardy spaces with a general weight are considered. Basicity of a part of exponential system is proved in Hardy classes, where the weight satisfies the Muckenhoupt condition. Using these results the basicity of the perturbed system of exponents in the weighted Lebesgue space is studied. Some special cases are considered.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48451322","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
On the Lie Centralizers of Quaternion Rings 关于四元数环的李中心器
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-06-01 DOI: 10.46793/kgjmat2203.471b
M. A. Bahmani, F. Ghomanjani
{"title":"On the Lie Centralizers of Quaternion Rings","authors":"M. A. Bahmani, F. Ghomanjani","doi":"10.46793/kgjmat2203.471b","DOIUrl":"https://doi.org/10.46793/kgjmat2203.471b","url":null,"abstract":"In this paper, we investigate the problem of describing the form of Lie centralizers on quaternion rings. We provide some conditions under which a Lie centralizer on a quaternion ring is the sum of a centralizer and a center valued map.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43089974","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
Non-Conformable Fractional Laplace Transform 不符合分数阶拉普拉斯变换
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-06-01 DOI: 10.46793/kgjmat2203.341m
F. Martínez, P. Mohammed, J. N. Nápoles Valdés
{"title":"Non-Conformable Fractional Laplace Transform","authors":"F. Martínez, P. Mohammed, J. N. Nápoles Valdés","doi":"10.46793/kgjmat2203.341m","DOIUrl":"https://doi.org/10.46793/kgjmat2203.341m","url":null,"abstract":"In this paper we present an extension of Fractional Laplace Transform in the framework of the non-conformable local fractional derivative. Its main properties are studied and it is applied to the resolution of fractional differential equations.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46985172","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
AJ-Statistical Approximation of Continuous Functions by Sequence of Convolution Operators 卷积算子序列对连续函数的AJ统计逼近
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-06-01 DOI: 10.46793/kgjmat2203.355d
S. Dutta, Rima Ghosh
{"title":"AJ-Statistical Approximation of Continuous Functions by Sequence of Convolution Operators","authors":"S. Dutta, Rima Ghosh","doi":"10.46793/kgjmat2203.355d","DOIUrl":"https://doi.org/10.46793/kgjmat2203.355d","url":null,"abstract":"In this paper, following the concept of AI-statistical convergence for real sequences introduced by Savas et al. [22], we deal with Korovkin type approximation theory for a sequence of positive convolution operators defined on C[a, b], the space of all real valued continuous functions on [a, b], in the line of Duman [6]. In the Section 3, we study the rate of AI-statistical convergence.","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41398932","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
List Coloring Under Some Graph Operations 某些图运算下的列表着色
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-06-01 DOI: 10.46793/kgjmat2203.417d
K. Das, Samane Bakaein, M. Tavakoli, F. Rahbarnia, A. Ashrafi
{"title":"List Coloring Under Some Graph Operations","authors":"K. Das, Samane Bakaein, M. Tavakoli, F. Rahbarnia, A. Ashrafi","doi":"10.46793/kgjmat2203.417d","DOIUrl":"https://doi.org/10.46793/kgjmat2203.417d","url":null,"abstract":"The list coloring of a graph G = G(V, E) is to color each vertex v ∈ V (G) from its color set L(v). If any two adjacent vertices have different colors, then G is properly colored. The aim of this paper is to study the list coloring of some graph operations","PeriodicalId":44902,"journal":{"name":"Kragujevac Journal of Mathematics","volume":" ","pages":""},"PeriodicalIF":0.7,"publicationDate":"2022-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44370382","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
Extremal Graphs for Exponential VDB Indices 指数VDB指数的极值图
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.105c
Roberto Cruz, J. Rada
{"title":"Extremal Graphs for Exponential VDB Indices","authors":"Roberto Cruz, J. Rada","doi":"10.46793/kgjmat2201.105c","DOIUrl":"https://doi.org/10.46793/kgjmat2201.105c","url":null,"abstract":"We Ąnd the extremal graphs for the exponential of well known vertexdegree-based topological indices over Gn, the set of graphs with n non-isolated vertices.","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":"45997606","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
Pseudo-BCK Algebras Derived from Directoids 由Directoid导出的伪BCK代数
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.125r
A. Rezaei
{"title":"Pseudo-BCK Algebras Derived from Directoids","authors":"A. Rezaei","doi":"10.46793/kgjmat2201.125r","DOIUrl":"https://doi.org/10.46793/kgjmat2201.125r","url":null,"abstract":"The aim of this paper is to derive pseudo-BCK algebras from directoids and vice versa. We generalize some results proved by Ivan Chajda et al. in the case of BCK-algebras. We assign to an arbitrary pseudo-BCK algebra a semilattice-like structure and observe that this is the point where directoids are different from the semilattice-like structures. Finally, the relation between commutative deductive systems and derive directoids from a bounded pseudo-BCK(pDN) algebras and a characterization of commutative deductive systems of a bounded pseudo-BCK(pDN) algebra in terms of directoids is discussed.","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":"49284958","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 STABILITY ANALYSIS OF SEQUENTIAL COUPLED SYSTEM OF HADAMARD-TYPE FRACTIONAL DIFFERENTIAL EQUATIONS HADAMARD型分数阶微分方程序列耦合系统的存在性和稳定性分析
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.085z
A. Zada, M. Yar
{"title":"EXISTENCE AND STABILITY ANALYSIS OF SEQUENTIAL COUPLED SYSTEM OF HADAMARD-TYPE FRACTIONAL DIFFERENTIAL EQUATIONS","authors":"A. Zada, M. Yar","doi":"10.46793/kgjmat2201.085z","DOIUrl":"https://doi.org/10.46793/kgjmat2201.085z","url":null,"abstract":"In this paper we study existence, uniqueness and Hyers-Ulam stability for a sequential coupled system consisting of fractional differential equations of Hadamard type, subject to nonlocal Hadamard fractional integral boundary conditions. The existence of solutions is derived from Leray-Schauder’s alternative, whereas the uniqueness of solution is established by Banach contraction principle. An example is also presented which illustrate our results.","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":"48412766","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
wMB-PROPERTY OF ORDER p IN BANACH SPACES BANACH空间中p阶的性质
IF 0.7
Kragujevac Journal of Mathematics Pub Date : 2022-02-01 DOI: 10.46793/kgjmat2201.029e
Manijeh Bahreini Esfahani
{"title":"wMB-PROPERTY OF ORDER p IN BANACH SPACES","authors":"Manijeh Bahreini Esfahani","doi":"10.46793/kgjmat2201.029e","DOIUrl":"https://doi.org/10.46793/kgjmat2201.029e","url":null,"abstract":"In this paper, we introduce a new property of Banach spaces called wMB-property of order p (1 ≤ p < ∞). A necessary and sufficient condition for a Banach space to have the wMB-property of order p is given. We study p-convergent operators and weakly-p-L-sets. Banach spaces with the wMB-property of order p are characterized. Also, the Dunford-Pettis property of order p and DP∗ -property of order p are studied in Banach spaces. Finally we show the relation between Pelczynski’s property (V ) and wMB-property of order p","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":"47317627","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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