Home > ELA > Vol. 27 (2014)

## Articles

Symmetric matrix pencils: codimension counts and the solution of a pair of matrix equations

Andrii Dmytryshyn, Bo Kagstrom, and Vladimir V. Sergeichuk

Spectral characterizations of propeller graphs

Xiagang Liu and Sanming Zhou

Commutators from a hyperplane of matrices

Clement de Seguins Pazzis

Minimum vector rank and complement critical graphs

Xiaowei Li, Michael Nathanson, and Rachel Phillips

Real and complex invariant subspaces for matrices which are H-positive real in an indefinite inner product space

J. H. Fourie, G. J. Groenwald, D.B. Janse Van Rensburg, and A. C.M. Ran

Change of the *-congruence canonical form of 2-by-2 matrices under perturbations

Vyacheslav Futorny, Lena Klimenko, and Vladimir Sergeichuk

A note on characterization of the shorted operation

Edward Pekarev

A bound for condition numbers of matrices

Michael I. Gil

On Kronecker Quotients

Yorick Hardy

Shadowing property of random linear cocyles

Abbas Fakhari and Ali Golmakani

Submatrices of Hadamard matrices: complementation results

Teo Banica, Ion Nechita, and Jean-Marc Schlenker

Quadratic forms on graphs with application to minimizing the least eigenvalue of signless Laplacian over bicyclic graphs

Gui-Dong Yu, Yi-Zheng Fan, and Yi Wang

Simplifications of the Ostrowski upper bounds for the spectral

Chaoqian Li, Baohua Hu, and Yaotang Li

Maxima of the Q-index: degenerate graphs

Vladimir Nikiforov

Possible numbers of nonzero entries in a matrix with a given term rank

Yun Zhang and Jin Zhong

Image-kernel (P,Q)-inverses in rings

Dijana Mosic, Dragan S. Djordjevic, and Gabriel Kantun-Montiel

The k-th derivatives of the immanent and the chi-symmetric power of an operator

Sonia and Carvalho and Pedro J. Freitas

The norm of the k-the derivative of the Chi-symmetric power of an operator

Sonia Carvalho and Pedro J. Freitas

Graded triangular algebras

Antonio J. Calderon Martin

Inequalities of generalized matrix functions via tensor products

Vehbi E. Paksoy, Ramazan Turkmen, and Fuzhen Zhang

On some properties of the pseudospectral radius

G. Krishna Kumar and S. H. Lui

Spectral properties of oriented hypergraphs

Nathan Reff

On the log-concavity of Laplacian characteristic polynomials of graphs

Dariush Kiani and Maryam Mirzakhah

Simultaneous decomposition of two EP matrices with applications

Julio Benitez and Xiaoji Liu

TP_k completions of partial matrices with one unspecified entry

V. Akin, C. R. Johnson, and S. Nasserasr

The maximum nullity of a complete subdivision graph is equal to its zero forcing number

Wayne Barrett, Steve Butler, Minerva Catral, Shaun M. Fallat, H. Tracy Hall, Leslie Hogben, and Michael Young

Minimum rank with zero diagonal

Cheryl Grood, Johannes Harmse, Leslie Hogben, Thomas J. Hunter, Bonnie Jacob, Andrew Klimas, and Sharon McCathern

Interval system of matrix equations with two unknown matrices

A. Rivaz, M. Mohseni Moghadam, and S. Zngoei Zadeh

Two by two units

R. E. Hartwig and P. Patricio

Maxima of the Q-index: graphs without long paths

Vladimir Nikiforov and Xiying Yuan

Hermitian octonion matrices and numerical ranges

Leiba Rodman

Strong power and subexponential laws for an ordered list of trajectories of a Markov chain

Vladimir V. Bochkarev and Eduard Yu. Lerner

Improved tests and characterizations of totally nonnegative matrices

Mohammad Adm and Jurgen Garloff

A note on graphs whose largest eigenvalues of the modularity matrix equals zero

Snjezana Majstorovic and Dragan Stevanovic

Linear spaces and preservers of bounded rank-two per-symmetric triangular matrices

W. L. Chooi, K. H. Kwa, M. H. Lim, and . C. Ng

New results on nonsingular power LCM matrices

Jixiang Wan, Shuangnian Hu, and Qianrong Tan

Some results on the largest and least eigenvalues of graphs

Huiqiu Lin, Ruifang Liu, and Jinlong Shu

Exact relaxation for the semidefinite matrix rank minimization problem with extended Lyapunov equation constraint

Ziyan Luo and Naihua Xiu

On oriented graphs with minimal skew energy

Shi-Cai Gong, Xueliang Li, and Guanghui Xu

A note on the convexity of the indefinite joint numerical range

Hiroshi Nakazato, Natalia Bebiano, and Joao da Providencia

Traces of Matrix Products

John Greene

Commuting maps on rank-k matrices

Xiao-Wei Xu and Xiaofei Yi

The combinatorial inverse eigenvalue problem II: all cases for small graphs

Wayne Barrett, Curtis G. Nelson, John Henry Sinkovic, and Tianyi Yang

Exact results for perturbation to total positivity and to total nonsingularity

Miriam Farber, Mitchell Faulk, Charles R. Johnson, and Evan Marzion

On the Estrada index of cacti

Erfang Shan, Hongzhuan Wang, and Liying Kang

On the rank-k numerical range of matrices polynomials

Aik. Aretaki and John Maroulas

Positive semidefinite 3 x 3 block matrices

Minghua Lin and Pauline van den Driessche

On the maximal angle between copositive matrices

Felix Goldberg and Naomi Shaked-Monderer

Inequalities for relative operator entropies

Pawel Kluza and Marek Niezgoda

Schur ideals and homomorphisms of the semidefinite cone

Babhru Joshi and Muddappa S. Gowda

A note on the spectral radius of a product of companion matrices

Eric Key and Hans Volkmer

On the fixed-point type Sylvester matrix equations over complete commutative dioids

Benham Hashemi, Mahtab Mirzaei Khalilabadi, and Hanieh Tavakolipour

Eigenvalue localization for complex matrices

Ibrahim Halil Gumus, Omar Hirzallah, and Fuad Kittaneh

Minimum Rank of Graphs with Loops

Chassidy Bozeman, AnnaVictoria Ellsworth, Leslie Hogben, Jephian Chin-Hung Lin, Gabi Maurer, Kathleen Nowak, Aaron Rodriguez, and James Strickland

Ranks and eigenvalues of states with prescribed reduced states

Chi-Kwong Li, Yiu-Tung Poon, and Xuefeng Wang

On the max-algebraic core of a nonnegative matrix

Peter Butkovic, Hans Schneider, and Sergei Sergeev