#### Submissions from 2011

Interpolation in DE Branges-Rovnyak Spaces, Joseph A. Ball, Vladimir Bolotnikov, and Sanne Ter Horst

Measurements and G(delta)-Subsets of Domains, Harold Bennett and David Lutzer

On higher order boundary derivatives of an analytic self-map of the unit disk, Vladimir Bolotnikov

A note on Hopf bifurcations in a delayed diffusive Lotka-Volterra predator-prey system, Shanshan Chen, Junjie Wei, and Junping Shi

Linear choosability of sparse graphs, Daniel W. Cranston and Gexin Yu

Coexistence of competing stage-structured populations, Masami Fujiwara, Georgia Pfeiffer, May Boggess, and Sarah Day

Ground States in the Spin Boson Model, David Hasler and Ira Herbst

Equilibrants, semipositive matrices, calculation and scaling, Charles R. Johnson and Zheng Tong

On singular integral operators with semi-almost periodic coefficients on variable Lebesgue spaces, Alexei Yu Karlovich and Ilya M. Spitkovsky

Norm Preservers of Jordan Products, Bojan Kuzma, Gorazd Lesnjak, Tatjana Petek, Chi-Kwong Li, and Leiba Rodman

Heart Rate Characteristics Monitoring and Central Neonatal Apnea, D. E. Lake, K. D. Fairchild, C. G. Rusin, J. B. Delos, and H. Lee

Least-Squares Approximation by Elements from Matrix Orbits Achieved by Gradient Flows on Compact Lie Groups, Chi-Kwong Li, Yiu-Tung Poon, and Thomas Schulte-Herbrueggen

Elliptical Range Theorems for Generalized Numerical Ranges of Quadratic Operators, Chi-Kwong Li, Yiu-Tung Poon, and Nung-Sing Sze

The ratio field of values, Brian Lins, Eduard Einstein, Charles R. Johnson, and Ilya Spitkovsky

The critical exponent for continuous conventional powers of doubly nonnegative matrices, Brian Lins, Charles R. Johnson, and Olivia Walch

The change in multiplicity of an eigenvalue of a Hermitian matrix associated with the removal of an edge from its graph, Paul R. McMichael and Charles R. Johnson

Eigenvalue perturbation theory of classes of structured matrices under generic structured rank one perturbations, Christian Mehl, Volker Mehrmann, Andre C. M. Ran, and Leiba Rodman

Remarks on Lipschitz properties of matrix groups actions, Leiba Rodman

Non-denseness of factorable matrix functions, Leiba Rodman, Ilya M. Spitkovsky, and Alex Brudnyi

Dynamics and pattern formation in a diffusive predator-prey system with strong Allee effect in prey, Junping Shi, Jinfeng Wang, Jinfeng Wang, and Junjie Wei

Inverse M-matrices, II, Ronald L. Smith and Charles R. Johnson

Constructive factorization of some almost periodic triangular matrix functions with a quadrinomial off diagonal entry, I. M. Spitkovsky, M. A. Bastos, A. Bravo, and Yu I. Karlovich

On certain finite-dimensional algebras generated by two idempotents, I. M. Spitkovsky and A. Boettcher

Preservers of eigenvalue inclusion sets of matrix products, Nung-Sing Sze, Virginia Forstall, Aaron Herman, Chi-Kwong Li, and Vincent Yannello

The Replicability of Oncolytic Virus: Defining Conditions in Tumor Virotherapy, Jianjun Paul Tian

A semi-recursion for the number of involutions in special orthogonal groups over finite fields, C. Ryan Vinroot and Feiqi Jiang

Reconstructing matrices from minors, Ashlyn M. Winkler, Joshua J. Mollner, and Charles R. Johnson

#### Submissions from 2010

In memoriam Israel Gohberg August 23, 1928-October 12, 2009, Harm Bart, Harry Dym, Rien Kaashoek, and Leiba Rodman

A gentle guide to the basics of two projections theory, A. Boettcher and I. M. Spitkovsky

On an Interpolation Problem for Generalized Schur Functions, Vladimir Bolotnikov

On the uniqueness and structure of solutions to a coupled elliptic system, Zhi-You Chen, Jann-Long Chern, Yong-Li Tang, and Junping Shi

Gangster operators and invincibility of positive semidefinite matrices, Timothy Ferguson and Charles Johnson

Israel Gohberg OBITUARY, Arthur E. Frazho, Marinus A. Kaashoek, and Leiba Rodman

Order invariant spectral properties for several matrices, Susana Furtado, Charles R. Johnson, and Susana Furtado

Preservers of eigenvalue inclusion sets, Aaron Herman, Chi-Kwong Li, and Jim Hartman

Eigenvalue assignments and the two largest multiplicities in a Hermitian matrix whose graph is a tree, Charles R. Johnson, Christopher Jordan-Squire, and David A. Sher

Semidefiniteness Without Hermiticity, Charles R. Johnson and Robert Reams

TP2 = Bruhat, C. R. Johnson and S. Nasserasr

A note on the unitary part of a contraction, Chi-Kwong Li

Numerical ranges of the powers of an operator, Chi-Kwong Li and Man-Duen Choi

Sum of Hermitian Matrices with Given Eigenvalues: Inertia, Rank, and Multiple Eigenvalues, Chi-Kwong Li and Yiu-Tung Poon

Periodic solutions of a logistic type population model with harvesting, Ping Liu, Junping Shi, Yuwen Wang, and Junping Shi

A note on monotonically metacompact spaces, David J. Lutzer, Harold R. Bennett, and Klaas Pieter Hart

Spectra that are Newton after extension or translation, M. Pisonero, C. R. Johnson, and C. Marijuan

Fredholmness of Toeplitz operators and corona problems, L. Rodman, M. C. Camara, and C. Diogo

A localization technique for linear preserver problems, Leiba Rodman and Peter Semrl

Projective free algebras of continuous functions on compact abelian groups, Leiba Rodman, Ilya M. Spitkovsky, and Alex Brudnyi

On common invariant cones for families of matrices, Leiba Rodman, Ilya M. Spitkovsky, and Hakan Seyalioglu

Coping-Related Variables Associated with Individual Differences in Adjustment to Cancer, Jeremy P. Shapiro, Tanujit Dey, and Harold S. Haller

Classification of four-body central configurations with three equal masses, Junping Shi, Junping Shi, and Zhifu Xie

Constructive almost periodic factorization of some triangular matrix functions, I. M. Spitkovsky, M. C. Camara, and Yu. I. Karlovich

Global stability of the endemic equilibrium of multigroup SIR models with nonlinear incidence, Ruoyan Sun

Multiplicative maps preserving the higher rank numerical ranges and radii, Nung-Sing Sze, Sean Clark, and Chi-Kwong Li

Maps preserving the spectrum of generalized Jordan product of operators, Ngai-Ching Wong, Jinchuan Hou, and Chi-Kwong Li

Injective colorings of sparse graphs, Gexin Yu, Seog-Jin Kim, and Daniel W. Cranston

#### Submissions from 2009

Special Issue in honor of Shmuel Friedland Preface, Abraham Berman, Christian Krattenthaler, Siegfried M. Rump, and Ilya Spitkovsky

Drazin inversion in the von Neumann algebra generated by two orthogonal projections, A. Boettcher and I. M. Spitkovsky

Nevanlinna-Pick meromorphic interpolation: The degenerate case and minimal norm solutions, Vladimir Bolotnikov

Extensions of discrete classical orthogonal polynomials beyond the orthogonality, R. S. Costas-Santos and J. F. Sanchez-Lara

A New Lower Bound on the Density of Vertex Identifying Codes for the Infinite Hexagonal Grid, Daniel W. Cranston, Daniel W. Cranston, and Gexin Yu

Maps preserving product XY-YX* on factor von Neumann algebras, Jianlian Cui and Chi-Kwong Li

Analytic Perturbation Theory and Renormalization Analysis of Matter Coupled to Quantized Radiation, Marcel Griesemer and David G. Hasler

Relaxation Oscillation Profile of Limit Cycle in Predator-Prey System, Sze-Bi Hsu, Junping Shi, and Junping Shi

An Investigation of Synchrony in Transport Networks, Rex K. Kincaid, Natalia Alexamdrov, and Michael J. Holroyd

Spectrum, Numerical Range and Davis-Wielandt Shell of a Normal Operator, Chi-Kwong Li and Yiu-Tung Poon

The joint essential numerical range of operators: convexity and related results, Chi-Kwong Li and Yiu-Tung Poon

Preservers of spectral radius, numerical radius, or spectral norm of the sum on nonnegative matrices, Chi-Kwong Li and Leiba Rodman

The Role of Higher Vorticity Moments in a Variational Formulation of Barotropic Flows on a Rotating Sphere, Chjan C. Lim, Junping Shi, and Junping Shi

Domain representability of certain function spaces, David Lutzer and Harold Bennett

Subcompactness and domain representability in GO-spaces on sets of real numbers, David Lutzer and Harold Bennett

Non-existence of non-constant positive steady states of two Holling type-II predator-prey systems: Strong interaction case, Rui Peng, Rui Peng, Junping Shi, and Junping Shi

Matrices and spectra satisfying the Newton inequalities, M. Pisonero, C. R. Johnson, and M. Pisonero

The sum of unitary similarity orbits containing only special operators, Yiu-Tung Poon and Chi-Kwong Li

On global bifurcation for quasilinear elliptic systems on bounded domains, Junping Shi, Junping Shi, and Xuefeng Wang

Bifurcation and spatiotemporal patterns in a homogeneous diffusive predator-prey system, Junping Shi, Fengqi Yi, Junjie Wei, and Junping Shi

Hopf bifurcations in a reaction-diffusion population model with delay effect, Ying Su, Junjie Wei, Junping Shi, and Junping Shi

Gelfand-Graev characters of the finite unitary groups, Nathaniel Thiem and C. Ryan Vinroot

Finite-Time Perturbations of Dynamical Systems and Applications to Tumor Therapy, Jianjun Paul Tian

Global asymptotical behavior of the Lengyel-Epstein reaction-diffusion system, Fengqi Yi, Junjie Wei, Junping Shi, and Junping Shi