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Proceedings of the Estonian Academy of Sciences. Physics. Mathematics最新文献

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On conservative and coercive SM-methods 论保守和强制sm方法
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.2001.2.02
M. Zeltser
{"title":"On conservative and coercive SM-methods","authors":"M. Zeltser","doi":"10.3176/phys.math.2001.2.02","DOIUrl":"https://doi.org/10.3176/phys.math.2001.2.02","url":null,"abstract":"We study the spaceCe of double sequences(xkl), satisfying lim l lim k |xkl a|=0 for some number a. In this note, using gliding hump arguments, we give necessary and sufficient conditions for a 3-dimensional matrix (i.e. SM-method) to transform every convergent or bounded sequence (xk) into the space Ce or Cbe, the space of elements in Ce with bounded columns.","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121950952","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: 11
ОБ АСИМПТОТИЧЕСКОЙ И ЭКСПОНЕНЦИАЛЬНОЙ СТАБИЛИЗАЦИИ НЕЛИНЕЙНОЙ СИСТЕМЫ ГАМИЛЬТОНА 汉密尔顿非线性系统的渐近线和指数稳定
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/10.3176/phys.math.1990.3.04
I. Keis
{"title":"ОБ АСИМПТОТИЧЕСКОЙ И ЭКСПОНЕНЦИАЛЬНОЙ СТАБИЛИЗАЦИИ НЕЛИНЕЙНОЙ СИСТЕМЫ ГАМИЛЬТОНА","authors":"I. Keis","doi":"10.3176/10.3176/phys.math.1990.3.04","DOIUrl":"https://doi.org/10.3176/10.3176/phys.math.1990.3.04","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"74 14","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120823182","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
STRICT CONVEXITY OF A SMOOTHLY RENORMED ℓ1; pp. 211–215 光滑改型1的严格凸性211 - 215页
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.1996.2/3.11
M. Põldvere
{"title":"STRICT CONVEXITY OF A SMOOTHLY RENORMED ℓ1; pp. 211–215","authors":"M. Põldvere","doi":"10.3176/phys.math.1996.2/3.11","DOIUrl":"https://doi.org/10.3176/phys.math.1996.2/3.11","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124004840","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-axisymmetric buckling of elastic-plastic annular plates 弹塑性环形板的非轴对称屈曲
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.2002.2.02
Ü. Lepik
{"title":"Non-axisymmetric buckling of elastic-plastic annular plates","authors":"Ü. Lepik","doi":"10.3176/phys.math.2002.2.02","DOIUrl":"https://doi.org/10.3176/phys.math.2002.2.02","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129691285","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
Privacy of experiments in the absence of local reality 在没有当地现实的情况下，实验的私密性
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.2002.2.04
K. Rebane
{"title":"Privacy of experiments in the absence of local reality","authors":"K. Rebane","doi":"10.3176/phys.math.2002.2.04","DOIUrl":"https://doi.org/10.3176/phys.math.2002.2.04","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129785989","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 CHARACTERIZATION OF THE SEMIDIRECT PRODUCT OF CYCLIC GROUPS BY ITS ENDOMORPHISM SEMIGROUP 环群半直积的自同态半群表征
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.1996.2/3.03
P. Puusemp
{"title":"A CHARACTERIZATION OF THE SEMIDIRECT PRODUCT OF CYCLIC GROUPS BY ITS ENDOMORPHISM SEMIGROUP","authors":"P. Puusemp","doi":"10.3176/phys.math.1996.2/3.03","DOIUrl":"https://doi.org/10.3176/phys.math.1996.2/3.03","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"117 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128168257","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
Haar wavelets based technique in evolution problems 基于Haar小波的进化问题求解技术
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.2004.1.04
C. Cattani
{"title":"Haar wavelets based technique in evolution problems","authors":"C. Cattani","doi":"10.3176/phys.math.2004.1.04","DOIUrl":"https://doi.org/10.3176/phys.math.2004.1.04","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128740563","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: 58
ОШИБКИ УСЕЧЕНИЯ ПРИ АППРОКСИМАЦИИ ИМПУЛЬСНОЙ ПЕРЕХОДНОЙ ФУНКЦИИ РАЗНОСТНЫМИ МНОГОЧЛЕНАМИ ЛАГЕРРА 拉格尔多项式脉冲过渡函数近似误差
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.1992.1.02
I. Astrov
{"title":"ОШИБКИ УСЕЧЕНИЯ ПРИ АППРОКСИМАЦИИ ИМПУЛЬСНОЙ ПЕРЕХОДНОЙ ФУНКЦИИ РАЗНОСТНЫМИ МНОГОЧЛЕНАМИ ЛАГЕРРА","authors":"I. Astrov","doi":"10.3176/phys.math.1992.1.02","DOIUrl":"https://doi.org/10.3176/phys.math.1992.1.02","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129537198","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
Robust pole assignment via stable polytopes of reflection vectors 通过稳定的反射向量多面体实现鲁棒极点配置
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.2006.2.01
Ü. Nurges
{"title":"Robust pole assignment via stable polytopes of reflection vectors","authors":"Ü. Nurges","doi":"10.3176/phys.math.2006.2.01","DOIUrl":"https://doi.org/10.3176/phys.math.2006.2.01","url":null,"abstract":"A robust version of the output controller design for discrete-time systems is introduced. Instead of a single stable point a stable polytope (or simplex) is preselected in the coefficient space of closed-loop characteristic polynomials. A constructive procedure for generating stable simplexes is given starting from the unit hypercube of reflection coefficients of monic polynomials. This procedure is quite straightforward, because for a special family of polynomials the linear cover of so-called reflection vectors is stable. The root placement of reflection vectors is studied. If a stable target simplex is preselected, then the robust output controller design task is solved by the quadratic programming approach.","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"114 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129676611","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
OPTICAL ORIENTATION OF THE NUCLEAR SPIN IN THE MOLECULE 分子中核自旋的光学取向
Proceedings of the Estonian Academy of Sciences. Physics. Mathematics Pub Date : 1900-01-01 DOI: 10.3176/phys.math.1993.3.09
O. Sild, M. Bender
{"title":"OPTICAL ORIENTATION OF THE NUCLEAR SPIN IN THE MOLECULE","authors":"O. Sild, M. Bender","doi":"10.3176/phys.math.1993.3.09","DOIUrl":"https://doi.org/10.3176/phys.math.1993.3.09","url":null,"abstract":"","PeriodicalId":308961,"journal":{"name":"Proceedings of the Estonian Academy of Sciences. Physics. Mathematics","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127523230","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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