Volume 6, Issue 3 Roman Drnovšek Martin Jesenko Marko Kandić Positive commutators and collections of operators 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 Roman Drnovšek Martin Jesenko Marko Kandić Find more articles with the same keywords Nonnegative matrices semigroups of matrices indecomposability commutators Find more articles with the same subject classes 15A48 20M20