Volume 5, Issue 3 Sawinder P. Kaur Sign preservation properties of some nonlinear transformations 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 Sawinder P. Kaur Find more articles with the same keywords nonlinear transformation finite difference method totally positive matrix Find more articles with the same subject classes 47J05 47J25 15A90 65N06