Volume 13, Issue 2 Debmalya Sain Kallol Paul Kalidas Mandal On two extremum problems related to the norm of a bounded linear operator 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 Debmalya Sain Kallol Paul Kalidas Mandal Find more articles with the same keywords orthogonality linear operators norm attainment Find more articles with the same subject classes 47L05 46B20 46C15