RT Journal Article T1 Constant Sign Solutions to Linear Fractional Integral Problems and Their Applications to the Monotone Method A1 Cao Labora, Daniel A1 Rodríguez López, Rosana K1 Fractional Calculus K1 Integral And Differential Equations K1 Constant Sign AB This manuscript provides some results concerning the sign of solutions for linear fractionalintegral equations with constant coefficients. This information is later used to prove the existence ofsolutions to some nonlinear problems, together with underestimates and overestimates. These resultsare obtained after applying suitable modifications in the classical process of monotone iterativetechniques. Finally, we provide an example where we prove the existence of solutions, and wecompute some estimates. PB MDPI YR 2020 FD 2020 LK http://hdl.handle.net/10347/21884 UL http://hdl.handle.net/10347/21884 LA eng NO Cao Labora, D.; Rodríguez-López, R. Constant Sign Solutions to Linear Fractional Integral Problems and Their Applications to the Monotone Method. Mathematics 2020, 8, 156. NO This research was partially supported by grant numbers MTM2016-75140-P (AEI/FEDER, UE) andED431C 2019/02 (GRC Xunta de Galicia) DS Minerva RD 24 abr 2026