Volume 18, Issue 1 Pingping Zhang Hu Yang Improvements in the upper bounds for the spread of a matrix Downloads Abstract PDF Full article PDF DOI { copied = true; setTimeout(() => copied = false, 2000) })" :aria-label="copied ? 'DOI copied' : 'Copy DOI'" :title="copied ? 'Copied' : 'Copy DOI'" > Find all available articles from these authors Pingping Zhang Hu Yang Find more articles with the same keywords the spread of a matrix upper bounds singular matrix improvement eigenvalue Find more articles with the same subject classes 15A09 15A18 15A45 65F35