Published: 2021-01-09

Article

Some additional notes on the spectra of non-negative symmetric 5 x 5 matrices

Raphael Loewy

1-13

PDF

Line graphs of complex unit gain graphs with least eigenvalue -2

Francesco Belardo, Maurizio Brunetti

14-30

PDF

Decomposition of matrices into commutators of unipotent matrices of index 2

Xin Hou

31-34

PDF

Structured strong $\boldsymbol{\ell}$-ifications for structured matrix polynomials in the monomial basis

Fernando de Terán, Carla Hernando, Javier Pérez

35-71

PDF

The W-weighted Drazin-star matrix and its dual

Mengmeng Zhou, Jianlong Chen, Néstor Thome

72-87

PDF

On linear preservers of semipositive matrices

Sachindranath Jayaraman, Vatsalkumar N. Mer

88-112

PDF

On the little secondary Bruhat order

Rosário Fernandes, Henrique F. da Cruz, Domingos Salomão

113-126

PDF

Karamardian Matrices: An Analogue of Q-Matrices

K.C. Sivakumar, Sushmitha Parameswaran, Megan Wendler

127-155

PDF

An analog of Thompson's triangle inequality in Euclidean Jordan algebras

Jiyuan Tao

156-159

PDF

Corrigendum to "Determinants of Normalized Bohemian Upper Hessenberg Matrices"

Massimiliano Fasi, Jishe Feng, Gian Maria Negri Porzio

160-162

PDF

Laplacian integral subcubic signed graphs

Yaoping Hou, Dijian Wang

163-176

PDF

Nullities for a class of 0-1 symmetric Toeplitz band matrices

Ron Evans, John Greene, Mark Van Veen

177-192

PDF

Nonsparse companion Hessenberg matrices

Alberto Borobia, Roberto Canogar

193-210

PDF

Spectral theory for self-adjoint quadratic eigenvalue problems - a review

Peter Lancaster, Ion Zaballa

211-246

PDF

m-commuting maps on triangular and strictly triangular infinite matrices

Roksana Słowik, Driss Aiat Hadj Ahmed

247-255

PDF

Extreme Points of Certain Transportation Polytopes with Fixed Total Sums

Zhi Chen, Zelin Zhu, Jiawei Li, Lizhen Yang, Lei Cao

256-271

PDF

Beyond the Fan-Hoffman inequality

Stephen Drury

272-275

PDF

Minimal indices and minimal bases via filtrations

D. Steven Mackey

276-294

PDF

Techniques for determining equality of the maximum nullity and the zero forcing number of a graph

Derek Young

295-315

PDF

Ordered multiplicity inverse eigenvalue problem for graphs on six vertices

John Ahn, Christine Alar, Beth Bjorkman, Steve Butler, Joshua Carlson, Audrey Goodnight, Haley Knox, Casandra Monroe, Michael C. Wigal

316-358

PDF

Injectivity of linear combinations in $\mathcal{B}(\mathcal{H})$

Marko Kostadinov

359-369

pdf

Multilevel symmetrized Toeplitz structures and spectral distribution results for the related matrix sequences

Paola Ferrari, Isabella Furci, Stefano Serra-Capizzano

370-386

PDF

On the density of semisimple matrices in indefinite scalar product spaces

Ralph John De la Cruz, Philip Saltenberger

387-401

PDF

Fast verification for the Perron pair of an irreducible nonnegative matrix

Shinya Miyajima

402-415

PDF

LIGHTS OUT! on graph products over the ring of integers modulo k

Ryan Munter, Travis Peters

416-424

PDF

On the tensor rank of the 3 x 3 permanent and determinant

Siddharth Krishna, Visu Makam

425-433

pdf

Totally bipartite tridiagonal pairs

Kazumasa Nomura, Paul Terwilliger

434-491

PDF

mth roots of H-selfadjoint matrices over the quaternions

Dawie B. Janse van Rensburg, André C.M. Ran, Frieda Theron, Madelein van Straaten

492-503

PDF

Nonparallel flat portions on the boundaries of numerical ranges of 4-by-4 nilpotent matrices

Mackenzie Cox, Weston Grewe, Grace Hochrein, Linda Patton, Ilya Spitkovsky

504-523

PDF

On tensor GMRES and Golub-Kahan methods via the T-product for color image processing

Mohamed El Guide, Alaa El Ichi, Khalide Jbilou, Rachid Sadaka

524-543

PDF

Error analysis of the generalized low-rank matrix approximation

Pablo Soto-Quiros

544-548

PDF

On the estimation of ${x}^TA^{-1}{x}$ for symmetric matrices

Paraskevi Fika, Marilena Mitrouli, Ondrej Turek

549-561

PDF

Potentially stable and 5-by-5 spectrally arbitrary tree sign pattern matrices with all edges negative

Sunil Das

562-582

PDF

A projective approach to nonnegative matrix factorization

Patrick Groetzner

583-597

PDF

Generalized commutators and the Moore-Penrose inverse

Irwin S. Pressman

598-612

pdf

Alternating sign and sign-restricted matrices: representations and partial orders

Richard A. Brualdi, Geir Dahl

613-639

PDF

Generalized Standard Triples for Algebraic Linearizations of Matrix Polynomials

Eunice Y.S. Chan, Robert M. Corless, Leili Rafiee Sevyeri

640-658

pdf

Polar decompositions of quaternion matrices in indefinite inner product spaces

Gilbert J. Groenewald, Dawie B. Janse van Rensburg, André C.M. Ran, Frieda Theron, Madelein van Straaten

659-670

PDF

Simple necessary conditions for Hadamard factorizability of Hurwitz polynomials

Stanisław Białas, Michał Góra

671-679

PDF

Centrosymmetric universal realizability

Ana Julio, Yankis R. Linares, Ricardo L. Soto

680-691

PDF

(0,1)-matrices and discrepancy

LeRoy Beasley

692-697

PDF

The maximal angle between 5×5 positive semidefinite and 5×5 nonnegative matrices

Qinghong Zhang

698-708

PDF