Volume 14

Issue 1

3/2020

Xinxing Wu, Yang Luo

Invariance of distributional chaos for backward shifts

14-01 Pages 1-7

Abstract Article page

Anatoliy Manov

Positive definiteness of piecewise-linear function 2

14-02 Pages 9-22

Abstract Article page

Huanyin Chen, Marjan Sheibani Abdolyousefi

g-Drazin inverses for operator matrices

14-03 Pages 23-31

Abstract Article page

V. I. Mogilevskii

On couplings of symmetric operators with possibly unequal and infinite deficiency indices

14-04 Pages 33-69

Abstract Article page

Namig J. Guliyev

On extensions of symmetric operators

14-05 Pages 71-75

Abstract Article page

Brian Lins, Ilya M. Spitkovsky

Inverse continuity of the numerical range map for Hilbert space operators

14-06 Pages 77-90

Abstract Article page

Samir Raouafi

Operators with minimal pseudospectra and connections to normality

14-07 Pages 91-103

Abstract Article page

Mohammad Sababheh, Hamid Reza Moradi, Ibrahim Halil Gümüş

Some new operator inequalities

14-08 Pages 105-115

Abstract Article page

Ali Ebadian, Ali Jabbari

Matrix valued p-convolution operators

14-09 Pages 117-128

Abstract Article page

Hanen Damak, Mohamed Ali Hammami

Asymptotic stability of a perturbed abstract differential equations in Banach spaces

14-10 Pages 129-138

Abstract Article page

Seyyed Mohammad Tabatabaie, Ali Reza Bagheri Salec, Maryam Zare Sanjari

A note On Orlicz algebras

14-11 Pages 139-144

Abstract Article page

Salah Mecheri, Sid Ahmed Ould Ahmed Mahmoud

Classes of operators related to m-isometric operators

14-12 Pages 145-157

Abstract Article page

Beinane Sid Ahmed, Sid Ahmed Ould Ahmed Mahmoud

On the class of n-power D-m-quasi-normal operators on Hilbert spaces

14-13 Pages 159-174

Abstract Article page

Burcu Ungor, Sait Halıcıoglu, Abdullah Harmanci

Shorted operators with respect to a partial order in a dual module

14-14 Pages 175-187

Abstract Article page

H. Ghahramani, M. N. Ghosseiri, L. Heidarizadeh

Linear maps on block upper triangular matrix algebras behaving like Jordan derivations through commutative zero products

14-15 Pages 189-205

Abstract Article page

Tian Niu, Xiaoling Hao, Jiong Sun, Kun Li

Canonical forms of self-adjoint boundary conditions for regular differential operators of order three

14-16 Pages 207-220

Abstract Article page

Aahan Agrawal, Astrid Berge, Seth Colbert-Pollack, Rubén A. Martínez-Avendaño, Elyssa Sliheet

Norms, kernels and eigenvalues of some infinite graphs

14-17 Pages 221-250

Abstract Article page

L. Khadkhuu, D. Tsedenbayar

On the numerical range and operator norm of V²

14-18 Pages 251-259

Abstract Article page

Dimosthenis Drivaliaris, Nikos Yannakakis

The spectrum of the restriction to an invariant subspace

14-19 Pages 261-264

Abstract Article page

Junjian Yang, Linzhang Lu, Zhen Chen

A note on a conjectured singular value inequality related to a linear map

14-20 Pages 265-269

Abstract Article page

Yucheng Li, Yameng Li

On the norm of Hankel operator restricted to Fock space

14-21 Pages 271-281

Abstract Article page

Lars-Erik Persson, George Tephnadze, Georgi Tutberidze

On the boundedness of subsequences of Vilenkin-Fejér means on the martingale Hardy spaces

14-22 Pages 283-294

Abstract Article page

Issue 2

6/2020

Jie Liu, Junjie Huang, Alatancang Chen

Semigroup generations of unbounded block operator matrices based on the space decomposition

14-23 Pages 295-304

Abstract Article page

Younjin Kim, Eungil Ko

n-fold Jordan product commuting maps with a λ-Aluthge transform

14-24 Pages 305-316

Abstract Article page

Dorin Ervin Dutkay, Rajitha Ranasinghe

Parseval frames of piecewise constant functions

14-25 Pages 317-331

Abstract Article page

Zine El Abidine Abdelali

On the local spectral properties of the left multiplication operators

14-26 Pages 333-349

Abstract Article page

Qihui Li, Don Hadwin, Weihua Li, Junhao Shen

Topological orbit dimension of MF C*-algebras and NFD algebras

14-27 Pages 351-379

Abstract Article page

Anindya Ghatak, Anil Kumar Karn

Quantization of A₀(K)-Spaces

14-28 Pages 381-399

Abstract Article page

L. W. Marcoux, A. R. Sourour

On the spectrum of the Sylvester-Rosenblum operator acting on triangular algebras

14-29 Pages 401-416

Abstract Article page

S. S. Dragomir

Inequalities for weighted geometric mean in Hermitian unital Banach ∗-algebras via a result of Cartwright and Field

14-30 Pages 417-435

Abstract Article page

Michio Seto, Atsushi Uchiyama

An indefinite range inclusion theorem for triplets of bounded linear operators on a Hilbert space

14-31 Pages 437-446

Abstract Article page

Song Lin, Xiaohui Fu

Inequalities for the λ-weighted mixed arithmetic-geometric-harmonic means of sector matrices

14-32 Pages 447-454

Abstract Article page

Alexey Pyshkin

On the k point density problem for band-diagonal M-bases

14-33 Pages 455-468

Abstract Article page

Jon P. Bannon, Jan Cameron, Kunal Mukherjee

On noncommutative joinings III

14-34 Pages 469-490

Abstract Article page

Chenghua Gao, Fei Zhang, Maojun Ran

Eigenvalues of discrete Sturm-Liouville problems with sign-changing weight and coupled boundary conditions

14-35 Pages 491-513

Abstract Article page

Florin Pop

Some C^*-algebras whose Ext is not a group

14-36 Pages 515-521

Abstract Article page

B. P. Duggal, I. H. Kim

On power Drazin normal and Drazin quasi-normal Hilbert space operators

14-37 Pages 523-533

Abstract Article page

Issue 3

9/2020

Pavel Kurasov, Jonathan Rohleder

Laplacians on bipartite metric graphs

14-38 Pages 535-553

Abstract Article page

Markus Holzmann, Gerhard Unger

Boundary integral formulations of eigenvalue problems for elliptic differential operators with singular interactions and their numerical approximation by boundary element methods

14-39 Pages 555-599

Abstract Article page

Olaf Post, Natalia Saburova

Schrödinger operators with potential waveguides on periodic graphs

14-40 Pages 601-634

Abstract Article page

David Krejčiřík, Kateřina Zahradová

Quantum strips in higher dimensions

14-41 Pages 635-665

Abstract Article page

Biagio Cassano, Vladimir Lotoreichik

Self-adjoint extensions of the two-valley Dirac operator with discontinuous infinite mass boundary conditions

14-42 Pages 667-678

Abstract Article page

Olaf Post, Jan Simmer

Convergence of Laplacians on smooth spaces towards the fractal Sierpiński gasket

14-43 Pages 679-703

Abstract Article page

Pavel Exner

Spectral optimization for singular Schrödinger operators

14-44 Pages 705-716

Abstract Article page

Joachim Kerner

On the number of isolated eigenvalues of a pair of particles on the half-line

14-45 Pages 717-722

Abstract Article page

Anna Muranova

On the notion of effective impedance

14-46 Pages 723-741

Abstract Article page

Delio Mugnolo, Marvin Plümer

Lower estimates on eigenvalues of quantum graphs

14-47 Pages 743-765

Abstract Article page

Daniela Maier

Breather solutions on discrete necklace graphs

14-48 Pages 767-776

Abstract Article page

Issue 4

12/2020

Haihui Fan, Don Hadwin, Wenjing Liu

An extension of the Beurling-Chen-Hadwin-Shen theorem for noncommutative Hardy spaces associated with finite von Neumann algebras

14-49 Pages 777-793

Abstract Article page

S. Pirzada, Hilal A. Ganie, Bilal A. Chat

On real or integral skew Laplacian spectrum of digraphs

14-50 Pages 795-813

Abstract Article page

Elvis Barakovic, Vedad Pasic

Analyzing the spectral (a)symmetry of the massless Dirac operator on the 3-torus

14-51 Pages 815-835

Abstract Article page

Xuanhao Ding, Yueshi Qin, Yuanqi Sang

Harmonic Hardy space and their operators

14-52 Pages 837-855

Abstract Article page

Chao Mei Liu

Commutativity of Toeplitz operators on the Bergman spaces of the unit disk

14-53 Pages 857-870

Abstract Article page

Horst Behncke, Don Hinton

𝒞-symmetric second order differential operators

14-54 Pages 871-908

Abstract Article page

Jian Shi

A Hiai-Lin type log-majorization via block-matrices

14-55 Pages 909-914

Abstract Article page

Lon Mitchell

A note on Bapat's q-permanent conjecture

14-56 Pages 915-919

Abstract Article page

Miao He, Jinsong Leng, Dongwei Li, Yuxiang Xu

Operator representations of K-frames: boundedness and stability

14-57 Pages 921-934

Abstract Article page

Xunxiang Guo

Operator parameterizations of frame generators and generalized dual pair of frame generators of unitary systems

14-58 Pages 935-949

Abstract Article page

Paweł Wójcik

Semi-smooth points in space of operators on Hilbert space

14-59 Pages 951-958

Abstract Article page

Chunhong Fu, Mohammad Sal Moslehian, Qingxiang Xu, Ali Zamani

Factorization and range inclusion of adjointable operators on the weighted Hilbert C^∗-modules

14-60 Pages 959-969

Abstract Article page

Vladimir Strauss

On a functional calculus for unitary operators in Pontryagin spaces

14-61 Pages 971-999

Abstract Article page

Agnes Radl, Manfred P. H. Wolff

Topological properties of the block numerical range of operator matrices

14-62 Pages 1001-1014

Abstract Article page

Cong Trinh Le

Tracial moment problems on hypercubes

14-63 Pages 1015-1027

Abstract Article page

Fernando Pablos Romo

Group inverse of finite potent endomorphisms on arbitrary vector spaces

14-64 Pages 1029-1042

Abstract Article page

S. Blake Allan, Justin Hanbin Kim, Gregory Michajlyszyn, Roger Nichols, Don Rung

Explicit Krein resolvent identities for singular Sturm-Liouville operators with applications to Bessel operators

14-65 Pages 1043-1099

Abstract Article page

David Damanik, Rafael del Rio, Asaf L. Franco

Random Sturm-Liouville operators with generalized point interactions

14-66 Pages 1101-1125

Abstract Article page