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Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics最新文献

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Some results on a-cosympletic manifolds 关于a-余辛流形的一些结果
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2022-01-15 DOI: 10.31926/but.mif.2021.1.63.2.10
H. Yoldaş
{"title":"Some results on a-cosympletic manifolds","authors":"H. Yoldaş","doi":"10.31926/but.mif.2021.1.63.2.10","DOIUrl":"https://doi.org/10.31926/but.mif.2021.1.63.2.10","url":null,"abstract":"In this paper, we deal with some geometric properties of an -cosymplectic manifold. First, we give some classi cations for an alpha-cosymplectic manifold endowed with some special vector elds such as projective, concircular and torse-forming. Then, we study alpha-cosymplectic manifold admitting eta-Ricci solitons with projective, a ne conformal vector elds. Finally, we obtain some haracterizations for such a manifold to be Einstein, eta-Einstein, cosymplectic.","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82074858","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
SUBCLASSES OF MULTIVALENT NON-BAZILEVIC FUNCTIONS DEFINED WITH HIGHER ORDER DERIVATIVES 用高阶导数定义的多价非巴齐勒维奇函数的子类
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.4
M. Aouf, T. Bulboacă, T. Seoudy
{"title":"SUBCLASSES OF MULTIVALENT NON-BAZILEVIC FUNCTIONS DEFINED WITH HIGHER ORDER DERIVATIVES","authors":"M. Aouf, T. Bulboacă, T. Seoudy","doi":"10.31926/but.mif.2020.13.62.2.4","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.4","url":null,"abstract":"By making use of the principle of subordination, we introduce a certain\u0000class of multivalent non-Bazilevic functions with higher order. Also, we obtain subordination property, inclusion result, and inequality properties of this\u0000class. The results presented here would provide extensions of those given in\u0000earlier works.","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87556939","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 symmetries of three-dimensional generalized symmetric spaces 三维广义对称空间的对称性
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.7
L. Belarbi
{"title":"On the symmetries of three-dimensional generalized symmetric spaces","authors":"L. Belarbi","doi":"10.31926/but.mif.2020.13.62.2.7","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.7","url":null,"abstract":"In this work we consider the three-dimensional generalized symmetric space, equipped with the left-invariant pseudo-Riemannian metric. We determine Killing vector fields and affine vectors fields. Also we obtain a full classification of Ricci, curvature and matter collineations","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82938557","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 hypergeometric summations formulas and series identities with applications 一些超几何求和公式和级数恒等式及其应用
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.14
R. Gupta, M. Menon, E. Mittal
{"title":"Some hypergeometric summations formulas and series identities with applications","authors":"R. Gupta, M. Menon, E. Mittal","doi":"10.31926/but.mif.2020.13.62.2.14","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.14","url":null,"abstract":"In the paper we present two incomplete Gaussian hypergeometric formulas in summation form by specific known formulas.We also developed each of these formulas and how they use to derive double series identities in general forms.","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89242370","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
High performance computing for machine learning 用于机器学习的高性能计算
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.26
Arpad Kerestely
{"title":"High performance computing for machine learning","authors":"Arpad Kerestely","doi":"10.31926/but.mif.2020.13.62.2.26","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.26","url":null,"abstract":"Efficient High Performance Computing for Machine Learning has become a necessity in the past few years. Data is growing exponentially in domains like healthcare, government, economics and with the development of IoT, smartphones and gadgets. This big volume of data, needs a storage space which no traditional computing system can offer, and needs to be fed to Machine Learning algorithms so useful information can be extracted out of it. The larger the dataset that is fed to a Machine Learning algorithm the more precise the results will be, but also the time to compute those results will increase. Thus, the need for Efficient High Performance computing in the aid of faster and better Machine Learning algorithms. This paper aims to unveil how one benefits from another, what research has achieved so far and where is it heading.","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86565534","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
Transformation formulas of incomplete hypergeometric functions via fractional calculus operators 不完全超几何函数的分数阶算子变换公式
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.15
K. Jangid, S. Purohit, D.L. Suthar
{"title":"Transformation formulas of incomplete hypergeometric functions via fractional calculus operators","authors":"K. Jangid, S. Purohit, D.L. Suthar","doi":"10.31926/but.mif.2020.13.62.2.15","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.15","url":null,"abstract":"The desire for present article is to derive from the application of fractional calculus operators a transformation that expresses a potentially useful incomplete hypergeometric function in various forms of a countable sum of lesser-order functions. Often listed are numerous (known or new) specific cases and implications of the findings described herein","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77536573","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 fixed point results about F-contractions in a complete metric space 完整度量空间中关于f -收缩的新不动点结果
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.22
A. M. Proca
{"title":"New fixed point results about F-contractions in a complete metric space","authors":"A. M. Proca","doi":"10.31926/but.mif.2020.13.62.2.22","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.22","url":null,"abstract":"In this paper, we extend the results of Wardowski by applying some new conditions on the self map on a complete metric space, concerning the Fcontractions defined by Wardowski. We present some fixed point results of Wardowski type. An example is given to demonstrate the novelty of our work.","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82268096","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
ALGORITHM FOR MERGING AND INTERPOLATING CLUSTERS IN OVERLAPPING IMAGES 重叠图像中聚类的合并和插值算法
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.25
L. Ciupala, A. Deaconu, D. Spridon
{"title":"ALGORITHM FOR MERGING AND INTERPOLATING CLUSTERS IN OVERLAPPING IMAGES","authors":"L. Ciupala, A. Deaconu, D. Spridon","doi":"10.31926/but.mif.2020.13.62.2.25","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.25","url":null,"abstract":"An image overlapping algorithm, taking into account certain properties\u0000of objects identified in the images (average intensity, movement speed, etc) is\u0000proposed. The algorithm minimizes both memory and time complexity and\u0000it can be used in various applications, especially in medical imaging analysis.\u0000The idea behind the proposed algorithm is surface merging and interpolation.","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76030264","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
Drazin inverse: representation, approximation, continuity and illustrations 德拉津逆:表现，近似，连续性和例证
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.8
Sadli Bendjedid, B. Messirdi, Sofiane Messirdi
{"title":"Drazin inverse: representation, approximation, continuity and illustrations","authors":"Sadli Bendjedid, B. Messirdi, Sofiane Messirdi","doi":"10.31926/but.mif.2020.13.62.2.8","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.8","url":null,"abstract":"In this paper, we present some characteristics and expressions of the Drazin inverse for matrices and bounded linear operators in Banach spaces. We give a survey of some of results on the continuity of the Moore-Penrose and Drazin inverse, direct technics for computing the Drazin inverse are discussed, they are based on Euler-Knopp Method and characterized in terms of a limiting process. The examples presented are for illustrative purposes, some of which are provided for testing the considered iterative processes","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84382630","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
Coefficient estimates for certain subclasses of starlike functions of complex order associated with hyperbolic domain 双曲域上复阶星形函数某些子类的系数估计
Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics Pub Date : 2021-01-20 DOI: 10.31926/but.mif.2020.13.62.2.17
K. Karthikeyan, G. Murugusundaramoorthy, A. Nistor-Serban
{"title":"Coefficient estimates for certain subclasses of starlike functions of complex order associated with hyperbolic domain","authors":"K. Karthikeyan, G. Murugusundaramoorthy, A. Nistor-Serban","doi":"10.31926/but.mif.2020.13.62.2.17","DOIUrl":"https://doi.org/10.31926/but.mif.2020.13.62.2.17","url":null,"abstract":"In this paper, we obtain the coefficient inequalities for functions in certain subclasses of Janowski starlike functions of complex order which are related starlike functions associated with a hyperbolic domain. Our results extend the study of various subclasses of analytic functions. Several applications of our results are also mentioned","PeriodicalId":38784,"journal":{"name":"Bulletin of the Transilvania University of Brasov, Series III: Mathematics, Informatics, Physics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2021-01-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88971686","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: 3
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