Volume 9, Issue 2 Tahereh Haghi Kazem Ghanbari Angelo B. Mingarelli Existence of positive solutions for regular fractional Sturm-Liouville problems 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 Tahereh Haghi Kazem Ghanbari Angelo B. Mingarelli Find more articles with the same keywords positive solution fixed point theorem fractional differential equation Find more articles with the same subject classes 34A08 35B09 34K10