Volume 7, Issue 3 Mikio Kato Kichi-Suke Saito Takayuki Tamura Uniform non-squareness of ψ-direct sums of Banach spaces X ⊕ψ Y 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 Mikio Kato Kichi-Suke Saito Takayuki Tamura Find more articles with the same keywords absolute norm convex function monotonicity property of absolute norms direct sum of Banach spaces uniformly non-square Banach space Find more articles with the same subject classes 46B20 46B99