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ELA Volume 18 (2009)

Articles

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Block representations of the Drazin inverse of a bipartite matrix
Minerva Catral, Dale D. Olesky, and Pauline van den Driessche

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An angle metric through the notion of Grassmann representative
Grigoris I. Kalogeropoulos, Athanasios D. Karageorgos, and Athanasios A. Pantelous

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On the minimum rank of not necessarily symmetric matrices: A preliminary study
Francesco Barioli, Shaun M. Fallat, H. Tracy Hall, Daniel Hershkowitz, Leslie Hogben, Hein van der Holst, Bryan Shader, Bryan Shader, Bryan Shader, Bryan Shader, and Bryan Shader

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Generating potentially nilpotent full sign patterns
In-Jae Kim, Dale D. Olesky, Bryan L. Shader, Pauline van den Driessche, Hein van der Holst, and Kevin N. Vander Meulen

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The Q-matrix completion problem
Luz Maria DeAlba,; Leslie Hogben; and Bhaba Kumar Sarma

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Largest eigenvalues of the discrete p-Laplacian of trees with degree sequences
Tuerker Biyikoglu, Marc Hellmuth, and Josef Leydold

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Matrices totally positive relative to a tree
Charles R. Johnson,; Roberto S. Costas-Santos; and Boris Tadchiev

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The distance matrix of a bidirected tree
Ravindra B. Bapat, Arbind K. Lal, and Sukanta Pati

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Polynomial numerical hulls of order 3
Hamid Reza Afshin, Mohammad Ali Mehrjoofard, and Abbas Salemi

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Left eigenvalues of 2 by 2 symplectic matrices
E. Macias-Virgos and M. J. Pereira-Saez

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The Jordan forms of AB and BA
Ross A. Lippert and Gilbert Strang

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A new solvable condition for a pair of generalized Sylvester equations
Qing-Wen Wang, Hua-Sheng Zhang, and Guang-Jing Song

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Mv-matrices: a generalization of M-matrices based on eventually nonnegative matrices
Dale D. Olesky, Michael J. Tsatsomeros, and Pauline van den Driessche

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Full rank factorization and the Flanders Theorem
Rafael Canto, Beatriz Ricarte, and Ana M. Urbano

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On C-commuting graph of matrix algebra
P. Raja and S. M. Vaezpour

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Linearizations of singular matrix polynomials and the recovery of minimal indices
Fernando de Teran, Froilan M. Dopico, and D. Steven Mackey

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Universally optimal matrices and field independence of the minimum rank of a graph
Luz M. DeAlba, Jason Grout, Leslie Hogben, Rana Mikkelson, and Kaela Rasmussen

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On the singular two-parameter eigenvalue problem
Andrej Muhic and Bor Plestenjak

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Problems of classifying associative or Lie algebras over a field of characteristic not two and finite metabelian groups are wild
Genrich Belitskii, Andrii R. Dmytryshyn, Ruvim Lipyanski, Vladimir V. Sergeichuk, and Arkady Tsurkov

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Minimum rank of edge subdivisions of graphs
Wayne Barrett, Ryan Bowcutt, Mark Cutler, Seth Gibelyou, and Kayla Owens

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Generalized Pascal triangles and Toeplitz matrices
Ali Reza Moghaddamfar and S. M.H. Pooya

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Rational orthogonal versus real orthogonal
Dragomir Z. Djokovic, Simone Severini, and Ferenc Szollosi

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Spectrally arbitrary complex sign pattern matrices
Yubin Gao, Yanling Shao, and Yizheng Fan

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Explicit polar decomposition of complex matrices
Roger A. Horn, Giuseppe Piazza, and Tiziano Politi

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Two inverse eigenproblems for symmetric doubly arrow matrices
Hubert Pickmann, Juan C. Egana, and Ricardo L. Soto

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On λ_1-extremal non-regular graphs
Bolian Liu, Yufei Huang, and Zhifu You