Volume 20, Issue 2 Changsen Yang Tianyu Wang Generalized von Neumann-Jordan constant C(p)NJ(X) for the regular octagon space 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 Changsen Yang Tianyu Wang Find more articles with the same keywords generalized von Neumann-Jordan constant the regular octagon space Find more articles with the same subject classes 46B20