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Descriptive set-theoretic aspects ofclosed sets of uniqueness in the non-abelian setting 非阿贝尔集合中闭集唯一性的描述性集合论方面
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm210603-25-10
João Paulos
{"title":"Descriptive set-theoretic aspects of\u0000closed sets of uniqueness in the non-abelian setting","authors":"João Paulos","doi":"10.4064/sm210603-25-10","DOIUrl":"https://doi.org/10.4064/sm210603-25-10","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70515937","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Strong ball proximinality of the space of compact operators 紧算子空间的强球邻近性
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm211009-29-5
C. R. Jayanarayanan, Sreejith Siju
{"title":"Strong ball proximinality of the space of compact operators","authors":"C. R. Jayanarayanan, Sreejith Siju","doi":"10.4064/sm211009-29-5","DOIUrl":"https://doi.org/10.4064/sm211009-29-5","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70516150","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A weak type (1,1) estimate for the Hilbert operator in higher-dimensional setting 高维情况下Hilbert算子的弱型(1,1)估计
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm201201-4-11
F. Sukochev, K. Tulenov, D. Zanin
{"title":"A weak type (1,1) estimate for the Hilbert operator in higher-dimensional setting","authors":"F. Sukochev, K. Tulenov, D. Zanin","doi":"10.4064/sm201201-4-11","DOIUrl":"https://doi.org/10.4064/sm201201-4-11","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70509026","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Derivative bounds and continuity of maximal commutators 极大对易子的导数界与连续性
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm210920-25-10
Ting Chen, Feng Liu
{"title":"Derivative bounds and continuity of maximal commutators","authors":"Ting Chen, Feng Liu","doi":"10.4064/sm210920-25-10","DOIUrl":"https://doi.org/10.4064/sm210920-25-10","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70516416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
On nonlinear Rudin–Carleson type theorems 关于非线性Rudin-Carleson型定理
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm210711-19-12
A. Brudnyi
{"title":"On nonlinear Rudin–Carleson type theorems","authors":"A. Brudnyi","doi":"10.4064/sm210711-19-12","DOIUrl":"https://doi.org/10.4064/sm210711-19-12","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70516558","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Partial regularity of minimizers of asymptotically convex functionals with ${p(x)}$-growth ${p(x)}$-增长渐近凸泛函的极小值的部分正则性
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm210104-20-9
C. Goodrich, A. Scapellato
{"title":"Partial regularity of minimizers of asymptotically convex functionals with ${p(x)}$-growth","authors":"C. Goodrich, A. Scapellato","doi":"10.4064/sm210104-20-9","DOIUrl":"https://doi.org/10.4064/sm210104-20-9","url":null,"abstract":"We consider vectorial minimizers of the integral functional","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70515322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 6
Minimization of lowest positive periodic eigenvalue for the Camassa–Holm equation with indefinite potential 带不定势的Camassa-Holm方程最小正周期特征值的最小化
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm211019-20-6
Jifeng Chu, Gang Meng
{"title":"Minimization of lowest positive periodic eigenvalue for the Camassa–Holm equation with indefinite potential","authors":"Jifeng Chu, Gang Meng","doi":"10.4064/sm211019-20-6","DOIUrl":"https://doi.org/10.4064/sm211019-20-6","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70516164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 5
Spectral deviation of concentration operators for the short-time Fourier transform 短时傅里叶变换中浓度算子的谱偏差
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm220214-17-10
F. Marceca, J. Romero
{"title":"Spectral deviation of concentration operators for the short-time Fourier transform","authors":"F. Marceca, J. Romero","doi":"10.4064/sm220214-17-10","DOIUrl":"https://doi.org/10.4064/sm220214-17-10","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70524748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Some geometrical characterizations of $L_1$-predual spaces $L_1$-前偶空间的一些几何表征
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm220608-4-11
Teena Thomas
{"title":"Some geometrical characterizations of $L_1$-predual spaces","authors":"Teena Thomas","doi":"10.4064/sm220608-4-11","DOIUrl":"https://doi.org/10.4064/sm220608-4-11","url":null,"abstract":". Let X be a real Banach space. For a non-empty finite subset F and closed convex subset V of X , we denote by rad X ( F ) , rad V ( F ) , cent X ( F ) and d ( V, cent X ( F )) the Chebyshev radius of F in X , the restricted Chebyshev radius of F in V , the set of Chebyshev centers of F in X and the distance between the sets V and cent X ( F ) respectively. We prove that X is an L 1 -predual space if and only if for each four-point subset F of X and non-empty closed convex subset V of X , rad V ( F ) = rad X ( F ) + d ( V, cent X ( F )) . Moreover, we explicitly describe the Chebyshev centers of a compact subset of an L 1 - predual space. Various new characterizations of ideals in an L 1 -predual space are also obtained. In particular, for a compact Hausdorff space S and a subspace A of C ( S ) which contains the constant function 1 and separates the points of S , we prove that the state space of A is a Choquet simplex if and only if d ( A , cent C ( S ) ( F )) = 0 for every four-point subset F of A . We also derive characterizations for a compact convex subset of a locally convex topological vector space to be a Choquet simplex.","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70526174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Square roots of the Bessel operators and the related Littlewood–Paley estimates 贝塞尔算子的平方根和相关的Littlewood-Paley估计
IF 0.8 3区 数学
Studia Mathematica Pub Date : 2022-01-01 DOI: 10.4064/sm190922-19-11
Yanping Chen, X. Duong, Ji Li, Wenyu Tao, Dongyong Yang
{"title":"Square roots of the Bessel operators and the related Littlewood–Paley estimates","authors":"Yanping Chen, X. Duong, Ji Li, Wenyu Tao, Dongyong Yang","doi":"10.4064/sm190922-19-11","DOIUrl":"https://doi.org/10.4064/sm190922-19-11","url":null,"abstract":"","PeriodicalId":51179,"journal":{"name":"Studia Mathematica","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70496566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
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