... doi:10.1017/S0305004100068262doi:10.1186/1687-1847-2011-43Cite this article as: Agarwal et al.: Existence results of Brezis-Browder type for systems of Fredholm integral equations. Advances in Difference Equations 2011 2011:43.Submit ... Constant-sign solutions of a system of Fredholm integral equations. Acta ApplMath. 80,57–94 (2004)7. Agarwal, RP, O’Regan, D, Wong, PJY: Eigenvalues of a system of Fredholm integral equations. ... Triple solutions of constant sign for a system of Fredholm integral equations.Cubo. 6,1–45 (2004)9. Agarwal, RP, O’Regan, D, Wong, PJY: Constant-sign solutions of a system of integral equations:...