Volume 4, Issue 1 Dorin Andrica On a result concerning a property of closed manifolds 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 Dorin Andrica Find more articles with the same keywords Morse-Smale characteristic manifold k-covering closed smooth surface Find more articles with the same subject classes 57R70 58E05 26D99