Volume 9

Issue 1

3/2015

Yu. I. Karlovich, J. Loreto-Hernández, I. M. Spitkovsky

Factorization of some triangular matrix functions and its applications

09-01 Pages 1-29

Abstract Article page

Michael M. H. Pang

On an upper heat kernel bound for second order elliptic operators on bounded regions in R^N

09-02 Pages 31-56

Abstract Article page

P. W. Ng
A generalization of the Brown-Pearcy Theorem

09-03 Pages 57-82

Abstract Article page

Cristina Diogo
Algebraic properties of the set of operators with 0 in the closure of the numerical range

09-04 Pages 83-93

Abstract Article page

Rodica-Mihaela Dăneţ, Marian-Valentin Popescu, Nicoleta Popescu
Simultaneous extensions of a family of linear operators

09-05 Pages 95-112

Abstract Article page

Lajos Molnár, Peter Šemrl, Ahmed Ramzi Sourour
Bilocal automorphisms

09-06 Pages 113-120

Abstract Article page

G. Krishna Kumar, S. H. Lui
Pseudospectrum and condition spectrum

09-07 Pages 121-145

Abstract Article page

András Bátkai, Ágnes Havasi, Róbert Horváth, Dávid Kunszenti-Kovács, Péter L. Simon
PDE approximation of large systems of differential equations

09-08 Pages 147-163

Abstract Article page

Florin Pop
On the double commutant expectation property for operator systems

09-09 Pages 165-179

Abstract Article page

Hoger Ghahramani
Jordan derivations on block upper triangular matrix algebras

09-10 Pages 181-188

Abstract Article page

Béla Nagy
Orthonormal Jordan bases in finite dimensional Hilbert spaces

09-11 Pages 189-201

Abstract Article page

A. M. Simões
A transmission problem for the Helmholtz equation with higher order boundary conditions

09-12 Pages 203-223

Abstract Article page

Kamila Kliś-Garlicka, Marek Ptak
C-symmetric operators and reflexivity

09-13 Pages 225-232

Abstract Article page

Wasin So, Changqing Xu
A simple sufficient condition for complete positivity

09-14 Pages 233-239

Abstract Article page

Issue 2

6/2015

Ivan Veselić, Krešimir Veselić
Spectral gap estimates for some block matrices

09-15 Pages 241-275

Abstract Article page

Valentin Matache
On spectra of composition operators

09-16 Pages 277-303

Abstract Article page

Willian Franca
Commuting traces on invertible and singular operators

09-17 Pages 305-310

Abstract Article page

Hui Qu, Guihai Yu, Lihua Feng
More on the minimum skew-rank of graphs

09-18 Pages 311-324

Abstract Article page

Martín Argerami, Douglas Farenick
C^∗-envelopes of Jordan operator systems

09-19 Pages 325-341

Abstract Article page

Antonio M. Peralta
A note on 2-local representations of C^∗-algebras

09-20 Pages 343-358

Abstract Article page

Franz Hanauska
On the closure of the discrete spectrum of nuclearly perturbed operators

09-21 Pages 359-364

Abstract Article page

Sen Zhu
Complex symmetric triangular operators

09-22 Pages 365-381

Abstract Article page

Saliha Pehlivan, Deguang Han, Ram Mohapatra
Spectrally two-uniform frames for erasures

09-23 Pages 383-399

Abstract Article page

Constantin Costara
Automatic continuity for linear surjective maps compressing the point spectrum

09-24 Pages 401-405

Abstract Article page

Amol Sasane
Noncoherence of the multiplier algebra of the Drury-Arveson space H²_n for n≥3

09-25 Pages 407-416

Abstract Article page

Gholamreza Aghamollaei, Sharifeh Rezagholi
Higher rank numerical hulls of matrices and matrix polynomials

09-26 Pages 417-431

Abstract Article page

Ana C. Conceição, Rui C. Marreiros
On the kernel of a singular integral operator with non-Carleman shift and conjugation

09-27 Pages 433-456

Abstract Article page

Teodor Banica
The glow of Fourier matrices: universality and fluctuations

09-28 Pages 457-474

Abstract Article page

Koenraad M. R. Audenaert
Interpolating between the arithmetic-geometric mean and Cauchy-Schwarz matrix norm inequalities

09-29 Pages 475-479

Abstract Article page

Issue 3

9/2015

Friedrich Philipp, Carsten Trunk
Spectral points of type π₊ and type π_- of closed operators in indefinite inner product spaces

09-30 Pages 481-506

Abstract Article page

Wenhua Qian, Junhao Shen
Hochschild cohomology of type II₁ von Neumann algebras with property Γ

09-31 Pages 507-543

Abstract Article page

Marcel Hansmann
An observation concerning boundary points of the numerical range

09-32 Pages 545-548

Abstract Article page

Carlo Garoni, Stefano Serra-Capizzano, Paris Vassalos
A general tool for determining the asymptotic spectral distribution of Hermitian matrix-sequences

09-33 Pages 549-561

Abstract Article page

Ali Taghavi, Roja Hosseinzadeh, Hamid Rohi
Maps preserving the fixed points of sum of operators

09-34 Pages 563-569

Abstract Article page

Titarii Wootijirattikal, Sing-Cheong Ong, Jitti Rakbud
Functional decomposition theorems for C^∗-matrix operator spaces

09-35 Pages 571-596

Abstract Article page

Haili Zhao, Jinchuan Hou
A necessary and sufficient condition for positivity of linear maps on M₄ constructed from permutation pairs

09-36 Pages 597-617

Abstract Article page

Gorka Armentia, Juan-Miguel Gracia, Francisco E. Velasco
Closest southeast submatrix that makes multiple a defective eigenvalue of the northwest one

09-37 Pages 619-636

Abstract Article page

Hatem Mejjaoli, Mourad Jelassi, Youssef Othmani
Multivariable Bessel Gabor transform and applications

09-38 Pages 637-657

Abstract Article page

Che-man Cheng, Xiao-qing Jin, Seak-weng Vong
A survey on the Böttcher-Wenzel conjecture and related problems

09-39 Pages 659-673

Abstract Article page

Jung-Jin Lee
Hahn-Banach type extension theorems on p-operator spaces

09-40 Pages 675-685

Abstract Article page

Patrycja Jȩdrzejewska, Katarzyna Majcherek, August Zapała
Conditional expectations of random linear operators in Banach spaces

09-41 Pages 687-696

Abstract Article page

Antonija Pršlja
Random walks relative to multiple transition matrices

09-42 Pages 697-710

Abstract Article page

M. A. Efimov, A. E. Guterman
Maps on operators strongly preserving sharp order

09-43 Pages 711-731

Abstract Article page

Issue 4

12/2015

Christian Mehl, Volker Mehrmann, Michał Wojtylak
On the distance to singularity via low rank perturbations

09-44 Pages 733-772

Abstract Article page

Yuri I. Karlovich
𝐂^*-algebras of Bergman type operators with continuous coefficients on polygonal domains

09-45 Pages 773-802

Abstract Article page

Peter D. Johnson, Faruk Polat
On spaces derivable from a solid sequence space and a non-negative lower triangular matrix

09-46 Pages 803-814

Abstract Article page

Zoltán Sebestyén, Zsigmond Tarcsay, Tamás Titkos
A short-type decomposition of forms

09-47 Pages 815-830

Abstract Article page

Yu-Xia Liang, Ze-Hua Zhou
Disk-cyclicity and codisk-cyclicity of certain shift operators

09-48 Pages 831-846

Abstract Article page

Sergey M. Zagorodnyuk
On extensions of J-skew-symmetric and J-isometric operators

09-49 Pages 847-851

Abstract Article page

Piotr Budzyński, Artur Płaneta
Dense definiteness and boundedness of composition operators in L²-spaces via inductive limits

09-50 Pages 853-876

Abstract Article page

Dan Mu, Jiong Sun, Ji-Jun Ao
Asymptotic behavior of eigenvalues and eigenfunctions of Sturm-Liouville problems with coupled boundary conditions and transmission conditions

09-51 Pages 877-890

Abstract Article page

Jānis Cīrulis
One-sided star partial orders for bounded linear operators

09-52 Pages 891-905

Abstract Article page

Edward J. Timko
Some examples of extremal triples of commuting contractions

09-53 Pages 907-916

Abstract Article page

Minghua Lin
Inequalities related to 2 ✕ 2 block PPT matrices

09-54 Pages 917-924

Abstract Article page

Maria Joiţa, Radu-B. Munteanu, Ioannis Zarakas
Multipliers of Hilbert pro-C^∗-bimodules and crossed products by Hilbert pro-C^∗-bimodules

09-55 Pages 925-942

Abstract Article page

Olga Y. Kushel
Matrices with totally positive powers and their generalizations

09-56 Pages 943-964

Abstract Article page