The potentially stable tree sign patterns for dimensions less than five
- Johnson, Charles R.
- Summers, Tracy A.
Publication date
December 1989
DOI Publisher
Published by Elsevier Inc. ISSN
0024-3795 Citation count (estimate)
23Abstract
AbstractThe problem of characterizing potentially stable sign-pattern matrices remains unsolved, even for tree patterns. We present here in tabular form all (irreducible) n-by-n potentially stable sign patterns whose undirected graphs are trees, for n<5, in hopes that this may be useful to others in formulating and evaluating conjectures on the subject. Some background and a descriptio of methodology (which includes some new theoretical ideas) are also included
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