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ELA Volume 20 (2010)

Articles

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Permanents of Hessenberg (0,1)-matrices revisited
Brent Deschamp and Bryan L. Shader

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Inertia sets for graphs on six or fewer vertices
Wayne Barrett, Camille Jepsen, Robert Lang, Emily McHenry, Curtis Nelson, and Kayla Owens

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Reachability matrices and cyclic matrices
Augusto Ferrante and Harald K. Wimmer

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Ranges of Sylvester maps and a minimal rank problem
Andre and C.M. Ran and Leiba X. Rodman

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Extremal algebraic connectivities of certain caterpillar classes and symmetric caterpillars
Oscar Rojo, Luis Medina, Nair M.M. de Abreu, and Claudia Justel

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Spectrally arbitrary tree sign patterns of order 4
Marina Arav, Frank Hall, Zhongshan Li, Krishna Kaphle, and Nilay Manzagol

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A method for the inverse numerical range problem
Christos Chorianopoulos, Panayiotis Psarrakos, and Frank Uhlig

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Some characterizations of totally nonpositive (totally negative) matrices
Rafael Canto, Beatriz Ricarte, and Ana Maria Urbano

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The q-numerical range of 3 by 3 tridiagonal matrices
Mao-Ting Chien and Hiroshi Nakazato

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Refined inertially and spectrally arbitrary zero-nonzero patterns
Louis Deaett, Dale D. Olesky, and Pauline van den Driessche

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Leonard pairs from the equitable basis of sl2
Hasan Alnajjar and Brian Curtin

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Polynomial inequalities for non-commuting operators
John E. McCarthy and Richard M. Timoney

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The spectrum of the edge corona of two graphs
Yaoping Hou and Wai-Chee Shiu

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Nonnegative realization of complex spectra
Ricardo L. Soto, Mario Salas, and Cristina Manzaneda

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The eigenvalue distribution of block diagonally dominant matrices and block H-matrices
Cheng-Yi Zhang, Shuanghua Luo, Aiqun Huang, and Chengxian Xu

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On the minimum vector rank of multigraphs
Lon H. Mitchell, Sivaram K. Narayan, and Ian Rogers