Volume 12, Issue 4 Zhong-Qi Xiang Some new inequalities for K-frames 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 Zhong-Qi Xiang Find more articles with the same keywords Parseval K-frame dual K-frame scalar operator Find more articles with the same subject classes 42C15 42C40