Volume 17, Issue 4 Adam Osȩkowski Functional equations and sharp weak-type inequalities for the martingale square function 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 Adam Osȩkowski Find more articles with the same keywords Martingale square function optimal stopping free-boundary problem Find more articles with the same subject classes 60G40 60G42 35R35 45G10