发布求助
文献互助 智能选刊 最新文献

WSEAS Transactions on Mathematics archive最新文献

筛选
英文 中文
ωb-Topological Vector Spaces ωb拓扑向量空间
WSEAS Transactions on Mathematics archive Pub Date : 2020-04-03 DOI: 10.37394/23206.2020.19.12
Raja Mohammad Latif
{"title":"ωb-Topological Vector Spaces","authors":"Raja Mohammad Latif","doi":"10.37394/23206.2020.19.12","DOIUrl":"https://doi.org/10.37394/23206.2020.19.12","url":null,"abstract":"The purpose of the present paper is to introduce the new class of ω b - topological vector spaces. We study several basic and fundamental properties of ω b - topological and investigate their relationships with certain existing spaces. Along with other results, we prove that transformation of an open (resp. closed) set in aω b - topological vector space is ω b - open (resp. closed). In addition, some important and useful characterizations of ω b - topological vector spaces are established. We also introduce the notion of almost ω b - topological vector spaces and present several general properties of almost ω b - topological vector spaces.","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-04-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124701807","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
Introduction to the angular functions in euclidian 2D-space 欧几里得二维空间中的角函数简介
WSEAS Transactions on Mathematics archive Pub Date : 2012-02-01 DOI: 10.5555/2189981.2189988
C. Bayeh
{"title":"Introduction to the angular functions in euclidian 2D-space","authors":"C. Bayeh","doi":"10.5555/2189981.2189988","DOIUrl":"https://doi.org/10.5555/2189981.2189988","url":null,"abstract":"The Angular functions are new mathematical functions introduced by the author, they produce rectangular signals, in which period is function of angles and not of time as the previous functions. Similar to trigonometric functions, the angular functions have the same properties as the precedent, but the difference is that a rectangular signal is obtained instead of a sinusoidal signal, and moreover, one can change the width of each positive and negative alternate in the same period. This is not the case of any other trigonometric function. In other hand, one can change the frequency, the amplitude and the width of any period of the signal at any position by using the general form of the angular function. In this paper, an original study is introduced. Thus, the definition of the original part is presented. The angular functions are also defined. These functions are very important in technical subjects. They will be widely used in mathematics and in engineering domains, especially in power electronics, signal theory, propagation of signals and many other topics. Moreover, the Angular functions are the basis of the Elliptical trigonometry and the rectangular trigonometry in which they are new domains introduced in mathematics by the author.","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116960511","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
Weighted generalized kernel discriminant analysis using fuzzy memberships 基于模糊隶属度的加权广义核判别分析
WSEAS Transactions on Mathematics archive Pub Date : 2011-10-01 DOI: 10.5555/2064828.2064830
Yangjing, FanLiya
{"title":"Weighted generalized kernel discriminant analysis using fuzzy memberships","authors":"Yangjing, FanLiya","doi":"10.5555/2064828.2064830","DOIUrl":"https://doi.org/10.5555/2064828.2064830","url":null,"abstract":"Linear discriminant analysis (LDA) is a classical approach for dimensionality reduction. However, LDA has limitations in that one of the scatter matrices is required to be nonsingular and the nonli...","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122616427","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 further improved (G′/G)- expansion method and the extended tanh- method for finding exact solutions of nonlinear PDEs 进一步改进了求解非线性偏微分方程精确解的(G′/G)-展开法和扩展tanh-展开法
WSEAS Transactions on Mathematics archive Pub Date : 2011-02-01 DOI: 10.14317/JAMI.2012.30.1_2.253
E. Zayed
{"title":"A further improved (G′/G)- expansion method and the extended tanh- method for finding exact solutions of nonlinear PDEs","authors":"E. Zayed","doi":"10.14317/JAMI.2012.30.1_2.253","DOIUrl":"https://doi.org/10.14317/JAMI.2012.30.1_2.253","url":null,"abstract":"In the present article, we construct the exact traveling wave solutions of nonlinear PDEs in mathematical physics via the (1 + 1) dimensional modified Kawahara equation by using the following two methods: (i) A further improved (G′/G)- expansion method, where G = G(ξ) satisfies the auxiliary ordinary differential equation [G′(ξ)]2 = aG2(ξ) + bG4(ξ) + cG6(ξ), where ξ = x - Vt while a, b, c and V are constants. (ii) The well known extended tanh- function method. We show that the exact solutions obtained by these two methods are equivalent. Note that the first method (i) has not been used by anyone before.","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124325798","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: 21
Deterministic and stochastic Cournot duopoly games with tax evasion 具有逃税的确定性和随机古诺双寡头博弈
WSEAS Transactions on Mathematics archive Pub Date : 2010-08-01 DOI: 10.5555/1865408.1865411
NeamţuMihaela
{"title":"Deterministic and stochastic Cournot duopoly games with tax evasion","authors":"NeamţuMihaela","doi":"10.5555/1865408.1865411","DOIUrl":"https://doi.org/10.5555/1865408.1865411","url":null,"abstract":"In this paper the static model of the Cournot duopoly with tax evasion is analyzed. A study for the local stability of the stationary states is carried out in the case of the dynamic model with tax...","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115158742","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 comparative study of hybrid, neural networks and nonparametric regression models in time series prediction 混合、神经网络和非参数回归模型在时间序列预测中的比较研究
WSEAS Transactions on Mathematics archive Pub Date : 2009-10-01 DOI: 10.5555/1718168.1718171
D. Aydın, M. Mammadov
{"title":"A comparative study of hybrid, neural networks and nonparametric regression models in time series prediction","authors":"D. Aydın, M. Mammadov","doi":"10.5555/1718168.1718171","DOIUrl":"https://doi.org/10.5555/1718168.1718171","url":null,"abstract":"This paper presents a comparative study of the hybrid models, neural networks and nonparametric regression models in time series forecasting. The components of these hybrid models are consisting of the nonparametric regression and artificial neural networks models. Smoothing spline, regression spline and additive regression models are considered as the nonparametric regression components. Furthermore, various multilayer perceptron algorithms and radial basis function network model are regarded as the artificial neural networks components. The performances of these models are compared by forecasting the series of number of produced Cars and Domestic product per capita (GDP) data occurred in Turkey. This comparisons show that hybrid models proposed in this paper have denoted much more excellent performance than the hybrid models in literature.","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129543380","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
Neimark-sacker and flip bifurcations in a discrete-time dynamic system for internet congestion 网络拥塞的离散动态系统的Neimark-sacker和翻转分岔
WSEAS Transactions on Mathematics archive Pub Date : 2009-02-01 DOI: 10.5555/1558823.1558827
MirceaGabriela, OprisDumitru
{"title":"Neimark-sacker and flip bifurcations in a discrete-time dynamic system for internet congestion","authors":"MirceaGabriela, OprisDumitru","doi":"10.5555/1558823.1558827","DOIUrl":"https://doi.org/10.5555/1558823.1558827","url":null,"abstract":"The aim of this paper is to study the Neimark-Sacker and flip bifurcations for the discrete-time dynamic system, which describes the Internet congestion, with a single link and two sources. We desc...","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126959640","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
The study of some discrete IS-LM models with tax revenues and time delay 具有税收和时滞的离散IS-LM模型研究
WSEAS Transactions on Mathematics archive Pub Date : 2009-02-01 DOI: 10.5555/1558823.1558826
NeamţuMihaela, MirceaGabriela, OprisDumitru
{"title":"The study of some discrete IS-LM models with tax revenues and time delay","authors":"NeamţuMihaela, MirceaGabriela, OprisDumitru","doi":"10.5555/1558823.1558826","DOIUrl":"https://doi.org/10.5555/1558823.1558826","url":null,"abstract":"In this paper, we study some discrete IS-LM models with tax revenues and time delay. Considering its parameters as variables, we analyze the existence of the Neimark-Sacker bifurcation. We find the...","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"6 3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127406191","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
More on the Green Solow model with logistic population change 更多关于logistic人口变化的Green Solow模型
WSEAS Transactions on Mathematics archive Pub Date : 2009-02-01 DOI: 10.5555/1558823.1558825
FerraraMassimiliano, GuerriniLuca
{"title":"More on the Green Solow model with logistic population change","authors":"FerraraMassimiliano, GuerriniLuca","doi":"10.5555/1558823.1558825","DOIUrl":"https://doi.org/10.5555/1558823.1558825","url":null,"abstract":"This paper generalizes the model introduced by Ferrara and Guerrini [13], where two different research lines have been joined together: the one studying the effects of incorporating technological p...","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2009-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132187866","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: 9
Peak-valley segmentation algorithm for fatigue time series data 疲劳时间序列数据的峰谷分割算法
WSEAS Transactions on Mathematics archive Pub Date : 2008-12-01 DOI: 10.5555/1553637.1553639
Z. Nopiah, M. I. Khairir, S. Abdullah, C. Nizwan
{"title":"Peak-valley segmentation algorithm for fatigue time series data","authors":"Z. Nopiah, M. I. Khairir, S. Abdullah, C. Nizwan","doi":"10.5555/1553637.1553639","DOIUrl":"https://doi.org/10.5555/1553637.1553639","url":null,"abstract":"This paper presents the peak-valley (PV) segmentation algorithm for the purpose of producing a reliable method of fatigue time series segmentation and statistical segment-by-segment analysis of fatigue damage. The time series were segmented using a piecewise linear representation (PLR) based segmentation algorithm and consecutively the peak-valley (PV) segmentation algorithm. Statistical analysis and fatigue damage calculations were made on each segment and scatter plots were produced based on the relationship between segmental damage and its corresponding kurtosis value. Observations were made on the scatter plots produced by the PV segmentation algorithm to determine the reliability of the data scattering for fatigue data clustering prospects.","PeriodicalId":112268,"journal":{"name":"WSEAS Transactions on Mathematics archive","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2008-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122488328","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
首页 上一页 下一页 尾页
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