Frank J. Hall

activity

20122020

most citedMinimum ranks of sign patterns via sign vectors and duality

3 citations · 4 across the 6 of their papers we have counts for

collaborators

Showing 2013Show all

2 papers · 1 filter

math.CO2013★ 3 cited

Minimum ranks of sign patterns via sign vectors and duality

Marina Arav, Frank J. Hall, Zhongshan Li +3

A {\it sign pattern matrix} is a matrix whose entries are from the set ${+, -, 0}$ . The minimum rank of a sign pattern matrix $A$ is the minimum of the ranks of the real matrices…

math.CO2013

The minimum rank of a sign pattern matrix with a 1-separation

Marina Arav, Frank J. Hall, Zhongshan Li +3

A sign pattern matrix is a matrix whose entries are from the set ${+, -, 0}$ . If $A$ is an $m \times n$ sign pattern matrix, the qualitative class of $A$ , denoted $Q (A)$ , is the set…