Volume 19, Issue 1 Amit Kumar Khole Timothy Poumai S. K. Kaushik Operator radii of commuting products 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 Amit Kumar Khole Timothy Poumai S. K. Kaushik Find more articles with the same keywords operator radius numerical radius contraction unitary ρ dilation commutative operators Hilbert spaces Find more articles with the same subject classes 47A20 47A30 47A10 47A12