Volume 19, Issue 3 Razieh Alvani Mohammad Janfada Ghadir Sadeghi On K-frames generated by 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 Razieh Alvani Mohammad Janfada Ghadir Sadeghi Find more articles with the same keywords frame K-frame iterative frame K-dual Find more articles with the same subject classes 42C15 47B99