Volume 3, Issue 2 Lei Ji Chun-Lei Tang Existence of solutions for the coupled systems of second and fourth order elliptic equations 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 Lei Ji Chun-Lei Tang Find more articles with the same keywords elliptic system variational methods condition (C)c linking theorem nonquadraticity at infinity Find more articles with the same subject classes 35J48 35J50 35J58