Volume 14, Issue 4 Vladimir Strauss On a functional calculus for unitary operators in Pontryagin 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 Vladimir Strauss Find more articles with the same keywords Pontryagin spaces unitary operators function model weakly closed operator algebra Hardy class Find more articles with the same subject classes 46C20 47B50 47A60 47L75