Volume 13, Issue 3 Natália Bebiano R. Lemos João da Providência G. Soares Further developments of Furuta inequality of indefinite type 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 Natália Bebiano R. Lemos João da Providência G. Soares Find more articles with the same keywords Kreĭn space J-selfadjoint matrix Furuta inequality J-chaotic order J-relative entropy Find more articles with the same subject classes 47B50 47A63 15A45