Volume 20, Issue 1 Zhong-Qi Xiang Chun-Xia Lin Yu-Xian Chen Zhao-Sheng Xu A new view on some two-sided inequalities for frames in 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 Zhong-Qi Xiang Chun-Xia Lin Yu-Xian Chen Zhao-Sheng Xu Find more articles with the same keywords frame analysis operator alternate dual frame two-sided inequality Find more articles with the same subject classes 42C15 42C40 47B48