TY - JOUR T1 - Analysis of fractional differential systems involving Riemann Liouville fractional derivative AU - Yoruk Deren, Fulya AU - Batik, Songul PY - 2020 DA - December Y2 - 2020 DO - 10.31801/cfsuasmas.670823 JF - Communications Faculty of Sciences University of Ankara Series A1 Mathematics and Statistics JO - Commun. Fac. Sci. Univ. Ank. Ser. A1 Math. Stat. PB - Ankara University WT - DergiPark SN - 1303-5991 SP - 1345 EP - 1355 VL - 69 IS - 2 LA - en AB - This paper is devoted to studying the multiple positive solutions for a system of nonlinear fractional boundary value problems. Our analysis is based upon the Avery Peterson fixed point theorem. In addition, we include an example for the demonstration of our main result. .. KW - Multiple positive solution KW - fractional differential equation KW - fixed point theorem CR - Bai, Z., Sun,W., Existence and multiplicity of positive solutions for singular fractional boundary value problems, Comput. Math. 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