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Articles

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Generalized inverses of bordered matrices
Ravindra B. Bapat and Bing Zheng

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The nonnegative P_0-matrix completion problem
Ji Young Choi, Luz Maria DeAlba, Leslie Hogben, Benard M. Kivunge, Sandra K. Nordstrom, and Mike Shedenhelm

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Properties of a covariance matrix with an application to D-optimal design
Zewen Zhu, Daniel C. Coster, and Leroy R. Beasley

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Structured tools for structured matrices
D. Steven Mackey, Niloufer Mackey, and Francoise Tisseur

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Bounds for graph expansions via elasticity
Michael Neumann and Nic Ormes

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Absolutely flat idempotents
Charles R. Johnson, Yonatan Harel, Christopher J. Hillar, Jonathan M. Groves, and Patrick X. Rault

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The Merris index of a graph
Felix Goldberg and Gregory Shapiro

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The maximum number of 2 by 2 odd submatrices in (0,1)-matrices
Michael Marks, Rick Norwood, and George Poole

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The (weakly) sign symmetric P-matrix completion problems
Luz Maria DeAlba, Timothy L. Hardy, Leslie Hogben, and Amy Wangsness

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On generalized Hermite matrix polynomials
K. A.M. Sayyed, M. S. Metwally, and Raed S. Batahan

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On nonnegative matrices with given row and column sums
S. W. Drury, J. K. Merikoski, V. Laakso, and T. Tossavainen

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Multiplicative maps on invertible matrices that preserve matricial properties
Robert M. Guralnick, Chi-Kwong Li, and Leiba X. Rodman