Volume 14, Issue 1 Beinane Sid Ahmed Sid Ahmed Ould Ahmed Mahmoud On the class of n-power D-m-quasi-normal operators on Hilbert spaces 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 Beinane Sid Ahmed Sid Ahmed Ould Ahmed Mahmoud Find more articles with the same keywords (n,m)-power normal (n,m)-power quasi-normal n-power D-normal n-power D-quasi-normal Find more articles with the same subject classes 47B15 47B20 47A15