Volume 25, Issue 4 Miguel Berasategui Pablo M. Berná Extensions of democracy-like properties for sequences with gaps 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 Miguel Berasategui Pablo M. Berná Find more articles with the same keywords non-linear approximation greedy bases weak greedy algorithm quasi-greedy basis Find more articles with the same subject classes 41A65 41A46 46B15 46B45