Volume 19, Issue 1 Olga Rovenska Upper bound estimate for the norm of repeated de la Vallée Poussin operators 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 Olga Rovenska Find more articles with the same keywords Lebesgue constant upper bound estimation repeated de la Vallée Poussin means operator norm Find more articles with the same subject classes 42A10 47A58 41A35