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Annals of the University of Craiova-Mathematics and Computer Science Series最新文献

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Survey on handling passive nodes in MANETs manet中被动节点处理方法综述
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1414
Mihaela Ilie
{"title":"Survey on handling passive nodes in MANETs","authors":"Mihaela Ilie","doi":"10.52846/ami.v48i1.1414","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1414","url":null,"abstract":"This work handles the topic ad hoc networking between mobile devices and the specific problem of network nodes that choose not to forward messages. These nodes are called passive nodes. In our literature review of of Ad Hoc Mobile Wireless network protocols we identified three approaches: (i) incentives for active node, (ii) isolation of passive nodes. (iii) automatic active node detection. Our analysis of the existing approaches shows the best approach is categorized within the first category: the algorithmic mechanism design approach of applying a Vickery Clark Groves (VCG) mechanism to provide incentive to nodes to be active. This is a truthful mechanism which means that the most lucrative strategy for nodes is to always tell the truth about the required incentive in order to forward messages and always execute this action. The reason this happens is that the node will receive higher incentive than what they asked for when they are chosen to forward messages. In mobile ad-hoc networks the protocol needs to update routing tables therefore incentive requirements can be centralized with minimal impact on the performance of the protocol.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88296173","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 dual jet N-linear connections in the time-dependent Hamilton geometry 时变Hamilton几何中的双射流n -线性连接
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1392
A. Oană, M. Neagu
{"title":"On dual jet N-linear connections in the time-dependent Hamilton geometry","authors":"A. Oană, M. Neagu","doi":"10.52846/ami.v48i1.1392","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1392","url":null,"abstract":"In this paper we study the local adapted components of the N-linear connections on the dual 1-jet space J^{1∗}(R,M), together with its local adapted torsion and curvature d-tensors.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87925462","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
Matrix map between complex uncertain sequences 复杂不确定序列之间的矩阵映射
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1254
S. Saha, B. Tripathy, Santanu Roy
{"title":"Matrix map between complex uncertain sequences","authors":"S. Saha, B. Tripathy, Santanu Roy","doi":"10.52846/ami.v48i1.1254","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1254","url":null,"abstract":"In this article we define matrix maps between complex uncertain sequences. We introduce the notion of bounded sequences of complex uncertain sequence for almost sure, mean, measure and distribution. We introduce the limitation method for different notion of boundedness of sequence of complex uncertain variables and establish relation between the different notions. The necessary condition for a matrix map to be a limitation method is established.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78203179","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
Boundary value problem for nonlinear fractional differential equations involving Erdélyi-Kober derivative on unbounded domain 无界区域上含erd<s:1> - kober导数的非线性分数阶微分方程的边值问题
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1316
Maria Titraoui, Y. Arioua
{"title":"Boundary value problem for nonlinear fractional differential equations involving Erdélyi-Kober derivative on unbounded domain","authors":"Maria Titraoui, Y. Arioua","doi":"10.52846/ami.v48i1.1316","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1316","url":null,"abstract":"In this paper, we establish sufficient conditions for the existence of bounded solution for a class of boundary value problem for nonlinear fractional differential equations involving the Erdélyi-Kober differential operator on unbounded domain. Our results are based on a fixed point theorem of Schauder combined with the diagonalization argument method in a special Banach space. To that end, an example is presented to illustrate the usefulness of our main results.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73275075","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
Fast growing solutions of linear differential equations with analytic coefficients in the unit disc 单位圆盘中具有解析系数的线性微分方程的快速增长解
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1330
M. Kara, B. Belaïdi
{"title":"Fast growing solutions of linear differential equations with analytic coefficients in the unit disc","authors":"M. Kara, B. Belaïdi","doi":"10.52846/ami.v48i1.1330","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1330","url":null,"abstract":"In this paper, we investigate the growth of solutions of higher order linear differential equations with analytic coefficients of ϕ-order in the unit disc. We introduce new definitions of the lower order and the type related to the ϕ-order concepts to generalise and extend previous results due to Chyzhykov-Semochko [6], Semochko [14], Belaïdi [1,2,3], Hu-Zheng [12].","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85874478","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
Characterization of wavelets associated with $AB$-MRA on $L^2(mathbb R^n)$ L^2(mathbb R^n)$上与$AB$-MRA相关的小波的表征
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1446
O. Ahmad, M. Y. Bhat, N. Sheikh
{"title":"Characterization of wavelets associated with $AB$-MRA on $L^2(mathbb R^n)$","authors":"O. Ahmad, M. Y. Bhat, N. Sheikh","doi":"10.52846/ami.v48i1.1446","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1446","url":null,"abstract":"A wavelet with composite dilations is a function generating an orthonormal basis or a Parseval frame for $L^2(mathbb R^n)$ under the action of lattice translations and dilations by products of elements drawn from non-commuting matrix sets $A$ and $B$. Typically, the members of $B$ are matrices whose eigenvalues have magnitude one, while the members of $A$ are matrices expanding on a proper subspace of $mathbb R^n$. In this paper, we provide the characterization of composite wavelets based on results of affine and quasi affine frames. Furthermore all the composite wavelets associated with $AB$-MRA on $L^2(mathbb R^n)$ are also characterized.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84427523","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
Statistical Voronoi mean and applications to approximation theorems 统计Voronoi均值及其在近似定理中的应用
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1416
K. Demirci, S. Yildiz, F. Dirik
{"title":"Statistical Voronoi mean and applications to approximation theorems","authors":"K. Demirci, S. Yildiz, F. Dirik","doi":"10.52846/ami.v48i1.1416","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1416","url":null,"abstract":"In this paper, we give statistical Voronoi mean which is a new statistical summability method, is not need to be regular and positive. We prove a Korovkin type approximation theorem via this method that covers many important summability methods scattered in the literature. Also, we demonstrate that our theorem is stronger than proven by earlier authors with an interesting application. Finally, we establish the rate of convergence.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79506717","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 inequalities for operator monotone functions 算子单调函数的新不等式
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1410
S. Dragomir
{"title":"New inequalities for operator monotone functions","authors":"S. Dragomir","doi":"10.52846/ami.v48i1.1410","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1410","url":null,"abstract":"\"In this paper we prove that, if f:[0,∞)→R is operator monotone on [0,∞), then for all A, B such that 0<α≤A≤β<γ≤B≤δ for some positive constants α, β, γ, δ, 0≤(γ-β)((f(δ)-f(β))/(δ-β))≤f(B)-f(A)≤(δ-α)((f(γ)-f(α))/(γ-α)). In particular, we have the refinement and reverse of the celebrated Löwner-Heinz inequality 0<(γ-β)((δ^{r}-β^{r})/(δ-β))≤B^{r}-A^{r}≤(δ-α)((γ^{r}-α^{r})/(γ-α)) for all r∈(0,1].\"","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90999903","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 Hermite-Hadamard inequalities in the framework of generalized fractional integrals 广义分数阶积分框架下的新Hermite-Hadamard不等式
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1454
Juan Gabriel Galeano Delgado, J. N. Nápoles Valdés, Edgardo Enrique Pérez Reyes
{"title":"New Hermite-Hadamard inequalities in the framework of generalized fractional integrals","authors":"Juan Gabriel Galeano Delgado, J. N. Nápoles Valdés, Edgardo Enrique Pérez Reyes","doi":"10.52846/ami.v48i1.1454","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1454","url":null,"abstract":"In this work, we obtain new inequalities of the Hermite-Hadamard type, using generalized fractional integrals. The results obtained contain, as particular cases, several of those reported in the literature.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76778887","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
Int-soft bi-hyperideals in ordered ternary semihypergroups 有序三元半超群中的软双超群
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1373
A. F. Talee, M. Y. Abbasi, K. Hila
{"title":"Int-soft bi-hyperideals in ordered ternary semihypergroups","authors":"A. F. Talee, M. Y. Abbasi, K. Hila","doi":"10.52846/ami.v48i1.1373","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1373","url":null,"abstract":"The aim of this paper is to study po-ternary semihypergroups in terms of the int-soft bi-hyperideals. We introduce the notion of int-soft bi-hyperideals in po-ternary semihypergroups and some properties of them are investigated. Characterizations of bi-hyperideals in terms of int-soft bi-hyperideals are obtained. We prove that every int-soft hyperideal is an int-soft bi-hyperideal but the converse is not true. Examples are provided to illustrate the results.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":null,"pages":null},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80744700","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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