Recent Papers

S. W. Drury and Huiqiu Lin, Extremal digraphs with given clique number , Linear Algebra and its Applications, 439 (2013) pp. 328--345.

Huiqiu Lin and S. W. Drury, The maximum Perron roots of digraphs with some given parameters, Discrete Math. 313 (2013), no. 22, 2607-2613.

S. W. Drury, A Resolvent Estimate, The Natàlia Bebiano Anniversary Volume, C. Fonseca, S. Furtado, A. Kovacec, C.-K. Li (eds. ), Textos de Matemática. Série B 44. Coimbra: Universidade de Coimbra, Departamento de Matemática, pp 29-32, 2013, ISBN 978-972-8564-48-3.

S. W. Drury and S. Loisel, Sharp Condition Number Estimates for the Symmetric 2-Lagrange Multiplier Method, Proceedings of the 20th International Conference on Domain Decomposition Methods, San Diego, California, February 7-11 2011, pp 265-271, 2013.

S. W. Drury, Fischer determinantal inequalities and Higham's Conjecture, Linear Algebra and its Applications, no. 10, 3129-3133, 2013.

S. W. Drury and M. Lin, Reversed Fischer determinantal inequalities, Linear and Multilinear Algebra, 62/8 pp1069--1075, 2014.

S. W. Drury and M. Lin, Singular value inequalities for matrices with numerical ranges in a sector, Operators and Matrices, 8:4, pp1143--1148, 2014.

S. W. Drury, Principal Powers of Matrices with Positive Definite Real Part, Linear and Multilinear Algebra, 63/2, pp296--301, 2015.

S. W. Drury, Positive semidefiniteness of a 3 by 3 matrix related to partitioning, Linear Algebra and its Applications, 446, pp369--376, 2014.

S. W. Drury and H. Lin, On graphs with near minimal distance energy, Linear Algebra and its Applications, 477, pp76--101, 2015.

S. W. Drury and H. Lin, Colorings and spectral radius of digraphs, Discrete Math., 339/1 (2016), 327--332.

S. W. Drury, A counterexample to a question of Bapat and Sunder, Electronic Journal of Linear Algebra, 31, (2016) 69--70.

S. W. Drury, A real counterexample to two inequalities involving permanents, Mathematical Inequalities & Applications, 20, (2017) 349--352.