Agarwal Ravi P.; Hristova Snezhana; O’Regan Donal: Existence and Ulam type stability for nonlinear Riemann-Liouville fractional differential equations with constant delay. (2020)
Agarwal Ravi P.; Hristova Snezhana; O’Regan Donal: Existence and Ulam type stability for nonlinear Riemann-Liouville fractional differential equations with constant delay. (2020)
Çetin Erbil; Agarwal Ravi P.: Existence of solutions for fourth order three-point boundary value problems on a half-line. (2015)
Zhang Chenghui; Agarwal Ravi P.; Li Tongxing: Comparison theorem for oscillation of fourth-order nonliner retarded dynamic equations. (2013)
Yuan Chengjun; Jiang Daqing; O'Regan Donal; Agarwal Ravi P.: Multiple positive solutions to systems of nonlinear semipositone fractional differential equations with coupled boundary conditions. (2012)
Agarwal Ravi P.; Wong Patricia Jia Yiing: Positive solutions of complementary Lidstone boundary value problems. (2012)
Guo Chengjun; O'Regan Donal; Xu Yuantong; Agarwal Ravi P.: Existence of periodic solutions for a class of even order differential equations with deviating argument. (2009)