Volume 1, Issue 2 Jan S. Kes André C. M. Ran On the relation between XX[✻] and X[✻]X in an indefinite inner product 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 Jan S. Kes André C. M. Ran Find more articles with the same keywords Indefinite inner products canonical forms Find more articles with the same subject classes 47B50 15A21