Volume 8, Issue 1 Zhenzhen Zhang Xudong Shang Jihui Zhang Infinitely many solutions for a fourth-order nonlinear elliptic system 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 Zhenzhen Zhang Xudong Shang Jihui Zhang Find more articles with the same keywords fourth-order elliptic system variational methods variant Fountain theorem Find more articles with the same subject classes 26D15 26A51 32F99 41A17