Published: 2021-01-09

Article

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

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

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Decomposition of matrices into commutators of unipotent matrices of index 2

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

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The W-weighted Drazin-star matrix and its dual

Mengmeng Zhou, Jianlong Chen, Néstor Thome

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On linear preservers of semipositive matrices

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On the little secondary Bruhat order

Rosário Fernandes, Henrique F. da Cruz, Domingos Salomão

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Karamardian Matrices: An Analogue of Q-Matrices

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

Jiyuan Tao

156-159

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Corrigendum to "Determinants of Normalized Bohemian Upper Hessenberg Matrices"

Massimiliano Fasi, Jishe Feng, Gian Maria Negri Porzio

160-162

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Laplacian integral subcubic signed graphs

Yaoping Hou, Dijian Wang

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

Ron Evans, John Greene, Mark Van Veen

177-192

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Nonsparse companion Hessenberg matrices

Alberto Borobia, Roberto Canogar

193-210

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

Peter Lancaster, Ion Zaballa

211-246

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m-commuting maps on triangular and strictly triangular infinite matrices

Roksana Słowik, Driss Aiat Hadj Ahmed

247-255

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Extreme Points of Certain Transportation Polytopes with Fixed Total Sums

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

256-271

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Beyond the Fan-Hoffman inequality

Stephen Drury

272-275

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Minimal indices and minimal bases via filtrations

D. Steven Mackey

276-294

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

Derek Young

295-315

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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

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

Marko Kostadinov

359-369

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

Paola Ferrari, Isabella Furci, Stefano Serra-Capizzano

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On the density of semisimple matrices in indefinite scalar product spaces

Ralph John De la Cruz, Philip Saltenberger

387-401

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Fast verification for the Perron pair of an irreducible nonnegative matrix

Shinya Miyajima

402-415

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

Ryan Munter, Travis Peters

416-424

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

Siddharth Krishna, Visu Makam

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Totally bipartite tridiagonal pairs

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434-491

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mth roots of H-selfadjoint matrices over the quaternions

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

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

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

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Error analysis of the generalized low-rank matrix approximation

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

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549-561

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

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A projective approach to nonnegative matrix factorization

Patrick Groetzner

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Generalized commutators and the Moore-Penrose inverse

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

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Generalized Standard Triples for Algebraic Linearizations of Matrix Polynomials

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Polar decompositions of quaternion matrices in indefinite inner product spaces

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Simple necessary conditions for Hadamard factorizability of Hurwitz polynomials

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Centrosymmetric universal realizability

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

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(0,1)-matrices and discrepancy

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

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On the Geršgorin disks of distance matrices of graphs

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On $m$-th roots of nilpotent matrices

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Inertia Sets of Semicliqued Graphs

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