Volume 10, Issue 1 C. S. Kubrusly P. C. M. Vieira J. Zanni Powers of posinormal 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 C. S. Kubrusly P. C. M. Vieira J. Zanni Find more articles with the same keywords hyponormal operators posinormal operators quasiposinormal operators Find more articles with the same subject classes 47B20 47A53