Volume 6, Issue 4 Salah Mecheri Naim L. Braha Spectral Properties of n-perinormal 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 Salah Mecheri Naim L. Braha Find more articles with the same keywords n-perinormal operator Browder's theorem Weyl's theorem Fuglede-Putnam's theorem Find more articles with the same subject classes 47B47 47A30 47B20 47B10