Volume 4, Issue 3 C. De Coster Lower and Upper Solutions for Singular Derivative Dependent Dirichlet Problem 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 C. De Coster Find more articles with the same keywords singular boundary value problem lower and upper solutions derivative dependent nonlinearity Find more articles with the same subject classes 34B16 34B18 34C11