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

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On some inequalities related to fractional Hermite-Hadamard type for differentiable convex functions 可微凸函数的分数阶Hermite-Hadamard型不等式
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1369
H. Budak, Hasan Kara, M. Ali, M. E. Kiriș
{"title":"On some inequalities related to fractional Hermite-Hadamard type for differentiable convex functions","authors":"H. Budak, Hasan Kara, M. Ali, M. E. Kiriș","doi":"10.52846/ami.v48i1.1369","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1369","url":null,"abstract":"In this paper, we shall o¤er some new inequalities related to Hermite-Hadamard inequalities for differentiable convex functions involving generalized fractional integrals. Some of our new results are the extension of the previously established results.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":"36 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90722069","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 the topological generalized crossed modules 关于拓扑广义交叉模
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1287
M. H. Gürsoy
{"title":"On the topological generalized crossed modules","authors":"M. H. Gürsoy","doi":"10.52846/ami.v48i1.1287","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1287","url":null,"abstract":"In this paper, we define the topological versions of the concepts of crossed module over generalized groups, which is called generalized crossed module, and generalized group-groupoid. We construct the categories of the topological generalized crossed modules and their homomorphisms and of the topological generalized group-groupoid and homomorphisms between them. We also obtain some characterizations related to the concepts of topological generalized crossed module and topological generalized group-groupoid. Finally, at the end of the work, we prove that the category of topological generalized crossed modules is equivalent to that of topological generalized group-groupoids whose object sets are commutative topological generalized groups.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":" 3","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72382615","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
Analysis of fractional Fokker-Planck equation with Caputo and Caputo-Fabrizio derivatives 带有Caputo和Caputo- fabrizio导数的分数阶Fokker-Planck方程分析
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1473
Süleyman Çetinkaya, A. Demir, D. Baleanu
{"title":"Analysis of fractional Fokker-Planck equation with Caputo and Caputo-Fabrizio derivatives","authors":"Süleyman Çetinkaya, A. Demir, D. Baleanu","doi":"10.52846/ami.v48i1.1473","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1473","url":null,"abstract":"This research focus on the determination of the numerical solution for the mathematical model of Fokker-Planck equations utilizing a new method, in which Sumudu transformation and homotopy analysis method (SHAM) are used together. By SHAM analytical series solution of any mathematical model including fractional derivative can be obtained. By this method, we constructed the solution of fractional Fokker-Planck equations in Caputo and Caputo-Fabrizio senses. The results show that this method is advantageous and applicable to form the series resolution of the fractional mathematical models.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":"313 4","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72388639","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
Rotationally symmetrical plane graphs and their Fault-tolerant metric dimension 旋转对称平面图及其容错度量维数
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1447
S. Sharma, V. K. Bhat
{"title":"Rotationally symmetrical plane graphs and their Fault-tolerant metric dimension","authors":"S. Sharma, V. K. Bhat","doi":"10.52846/ami.v48i1.1447","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1447","url":null,"abstract":"Consider a robot which is investigating in a space exhibited by a graph (network), and which needs to know its current location. It can grant a sign to find how far it is from each among a lot of fixed places of interest (tourist spots or landmarks). We study the problem of calculating the minimum number of tourist spots required, and where they ought to be set, with the ultimate objective that the robot can generally decide its location. The set of nodes where the places of interest are placed is known as the metric basis of the graph, and the cardinality of tourist spots is known as the location number (or metric dimension) of the graph. Another graph invariant related to resolving set (say $mathfrak{L}$) is the fault-tolerant resolving set $mathfrak{L}^{ast}$, in which the expulsion of a discretionary vertex from $mathfrak{L}$ keeps up the resolvability. The problem of characterizing the classes of plane graphs with a bounded fault-tolerant metric dimension is of great interest nowadays. In this article, we obtain the fault-tolerant metric dimension of three interminable classes of symmetrical plane graphs, that are found to be constant for each of these three families of the plane graphs. We set lower and upper bounds for the fault-tolerant metric dimension of these three classes of the plane graphs.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":"10 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73956501","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
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":"02 1","pages":""},"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
Integral K-operator frames for B(H) B(H)的积分k算子框架
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1385
H. Labrigui, M. Rossafi, A. Touri, S. Kabbaj
{"title":"Integral K-operator frames for B(H)","authors":"H. Labrigui, M. Rossafi, A. Touri, S. Kabbaj","doi":"10.52846/ami.v48i1.1385","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1385","url":null,"abstract":"In this paper, we will introduce a new notion, that of $K$-Integral operator frames in the set of all bounded linear operators noted $mathcal{B}(H)$, where $H$ is a separable Hilbert space. Also, we prove some results of integral $K$-operator frame. Lastly we will establish some new properties for the perturbation and stability for an integral $K$-operator frames for $mathcal{B}(H)$.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":"17 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89007214","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 Data Mining approach for clustering Export Credit Agencies (ECAs) based on performance criteria: a bibliometric citation analysis for the period 2005 to 2020 基于绩效标准的出口信贷机构聚类的新数据挖掘方法:2005 - 2020年文献计量引用分析
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1579
Seyed Arash Shahraeini, S. Tabrizi, C. Spulbar, Ramona Birau, Amir Karbassi Yazdi
{"title":"New Data Mining approach for clustering Export Credit Agencies (ECAs) based on performance criteria: a bibliometric citation analysis for the period 2005 to 2020","authors":"Seyed Arash Shahraeini, S. Tabrizi, C. Spulbar, Ramona Birau, Amir Karbassi Yazdi","doi":"10.52846/ami.v48i1.1579","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1579","url":null,"abstract":"Nowadays, ECAs have a crucial role in the export of production, creating job opportunities for countries and growth of economic indicators.This research aims first to estimate the performance of ECAs based on covering all countries of the world and ranking the countries based on the issue of export credit according to their performance and clustering techniques. For evaluation performance of these ECAs, clustering techniques are used to put them in the categories according to their performance between 2005 to 2020 in the fourth quarter. The context of clustering shows the rank of each cluster, and then exporters can choose a better choice from them. Moreover, for reinsurance,other ECAs can find out which ECAs have high performance. The result indicates that ranking the ECAs and show the performance of each cluster.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":"1 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82803418","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 variational approach for nonlocal problems with variable exponent and nonhomogeneous Neumann conditions 具有变指数和非齐次诺伊曼条件的非局部问题的变分方法
IF 1
Annals of the University of Craiova-Mathematics and Computer Science Series Pub Date : 2021-06-30 DOI: 10.52846/ami.v48i1.1365
Anderson L. A. de Araujo, S. Heidarkhani, G. Afrouzi, S. Moradi
{"title":"A variational approach for nonlocal problems with variable exponent and nonhomogeneous Neumann conditions","authors":"Anderson L. A. de Araujo, S. Heidarkhani, G. Afrouzi, S. Moradi","doi":"10.52846/ami.v48i1.1365","DOIUrl":"https://doi.org/10.52846/ami.v48i1.1365","url":null,"abstract":"We study the existence of at least one weak solution for p(x)-Kirchhoff-type problems of nonhomogeneous Neumann conditions. Our technical approach is based on variational methods. Some examples are presented to demonstrate the application of our main results.","PeriodicalId":43654,"journal":{"name":"Annals of the University of Craiova-Mathematics and Computer Science Series","volume":"11 1","pages":""},"PeriodicalIF":1.0,"publicationDate":"2021-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76439590","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
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":"49 1","pages":""},"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":"1 1","pages":""},"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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