Volume 17, Issue 1 Hamid Boua Abdelaziz Tajmouati Characterizations of Hopfians 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 Hamid Boua Abdelaziz Tajmouati Find more articles with the same keywords Hopfian descent spectrum SVEP Find more articles with the same subject classes 47A10 47A11