Positivity of $2\times 2$ block matrices of operators
Mohammad Sal Moslehian, Mohsen Kian, Qingxiang Xu. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 726--743.Abstract: We review some significant generalizations and applications...
View ArticleRiesz transforms, Cauchy–Riemann systems, and Hardy-amalgam spaces
Al-Tarazi Assaubay, Jorge J. Betancor, Alejandro J. Castro, Juan C. Fariña. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 697--725.Abstract: In this article we study Hardy...
View ArticleBoundedness of Cesàro and Riesz means in variable dyadic Hardy spaces
Kristóf Szarvas, Ferenc Weisz. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 675--696.Abstract: We consider two types of maximal operators. We prove that, under some conditions,...
View ArticleOn the structure of universal functions for classes $L^{p}[0,1)^{2},p\in...
Martin Grigoryan, Artsrun Sargsyan. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 647--674.Abstract: We address questions on the existence and structure of universal functions...
View ArticleThe polar decomposition for adjointable operators on Hilbert $C^{*}$...
Na Liu, Wei Luo, Qingxiang Xu. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 627--646.Abstract: Let $n$ be any natural number. The $n$ -centered operator is introduced for...
View ArticleKernels of Hankel operators on the Hardy space over the bidisk
Kei Ji Izuchi, Kou Hei Izuchi, Yuko Izuchi. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 612--626.Abstract: For a Hankel operator $H_{\xi }$ , $\xi \in L^{\infty...
View ArticleOn the property $\mathit{IR}$ of Friis and Rørdam
Lawrence G. Brown. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 599--611.Abstract: Lin solved a longstanding problem as follows. For each $\epsilon \gt 0$ , there is $\delta...
View ArticleGeneralized quasidiagonality for extensions
P. W. Ng, Tracy Robin. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 582--598.Abstract: We generalize the notion of quasidiagonality, for extensions, allowing for the case where...
View ArticleThe Bass and topological stable ranks for algebras of almost periodic...
Raymond Mortini, Amol Sasane. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 565--581.Abstract: Let $\Lambda$ be either a subgroup of the integers ${\mathbb{Z}}$ , a semigroup in...
View ArticleFactorized sectorial relations, their maximal-sectorial extensions, and form...
Seppo Hassi, Adrian Sandovici, Henk de Snoo. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 538--564.Abstract: In this paper we consider sectorial operators, or more generally,...
View ArticleAbelian theorems for distributional Kontorovich–Lebedev and Mehler–Fock...
Benito J. González, Emilio R. Negrín. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 524--537.Abstract: Our goal in this article is to derive Abelian theorems for the...
View ArticleRank-one perturbations and Anderson-type Hamiltonians
Constanze Liaw. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 3, 507--523.Abstract: Motivated by applications of the discrete random Schrödinger operator, mathematical physicists...
View ArticleWandering subspace property for homogeneous invariant subspaces
Jörg Eschmeier. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 486--505.Abstract: For shift-like commuting tuples $T\in B(H)^{n}$ on graded Hilbert spaces $H$ , we show that each...
View ArticleSolid cores and solid hulls of weighted Bergman spaces
José Bonet, Wolfgang Lusky, Jari Taskinen. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 468--485.Abstract: We determine the solid hull for $2\lt p\lt \infty$ and the solid core...
View ArticleOn the Lax–Phillips scattering matrix of the abstract wave equation
M. Gawlik, A. Główczyk, S. Kuzhel. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 449--467.Abstract: We study the dependence of singularities of scattering matrices of the...
View ArticleInterpolation of $S$ -numbers and entropy numbers of operators
Mieczysław Mastyło, Radosław Szwedek. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 427--448.Abstract: We introduce the notion of $\vec{s}$ -numbers for operators in Banach...
View ArticleFunctional characterizations of trace spaces in Lipschitz domains
Soumia Touhami, Abdellatif Chaira, Delfim F. M. Torres. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 407--426.Abstract: Using a factorization theorem of Douglas, we prove...
View ArticleBounded Toeplitz operators on Bergman space
Fugang Yan, Dechao Zheng. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 386--406.Abstract: In this paper, we obtain a sufficient condition for Toeplitz operators with locally...
View ArticleComplete systems of unitary invariants for some classes of $2$...
Akash Anand, Sameer Chavan, Zenon Jan Jabłoński, Jan Stochel. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 359--385.Abstract: We characterize the unitary equivalence of $2$...
View ArticleA field-theoretic operator model and Cowen–Douglas class
Björn Gustafsson, Mihai Putinar. Source: Banach Journal of Mathematical Analysis, Volume 13, Number 2, 338--358.Abstract: In resonance with a recent geometric framework proposed by Douglas and Yang, we...
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