Volume 18, Issue 2 Zhong-Qi Xiang Chun-Xia Lin Xiang-Chun Xiao Frame inequalities in Hilbert spaces: two-sided inequalities with new structures 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 Chun-Xia Lin Xiang-Chun Xiao Find more articles with the same keywords frame Parseval frame alternate dual frame inequalities Find more articles with the same subject classes 42C15 42C40 47B48