B. Shader

activity

20052026

most citedExpected values of parameters associated with the minimum rank of a graph

19 citations · 21 across the 11 of their papers we have counts for

collaborators

Showing 2012Show all

1 paper · 1 filter

math.CO2012

A sign pattern that allows oppositely signed orthogonal matrices

Bryan L. Shader, Chanyoung L. Shader

We provide the first example of a sign pattern $S$ for which there exist orthogonal matrices $Q_{1}$ and $Q_{2}$ with sign pattern $S$ such that $det Q_{1} = 1$ and $det Q_{2} = - 1$ . The exi…