TY - JOUR T1 - Existence and Uniqueness of Positive Solutions for System of (p,q,r)-Laplacian Fractional Order Boundary Value Problems AU - Khuddush, Mahammad AU - Rajendra Prasad, Kapula AU - D, Leela PY - 2021 DA - March DO - 10.31197/atnaa.703304 JF - Advances in the Theory of Nonlinear Analysis and its Application JO - ATNAA PB - Erdal KARAPINAR WT - DergiPark SN - 2587-2648 SP - 138 EP - 157 VL - 5 IS - 1 LA - en AB - In this paper the existence of unique positive solutions for system of (p,q,r)-Lapalacian Sturm-Liouville type two-point fractional order boundary vaue problems is established by an application of n-fixed point theorem of ternary operators on partially ordered metric spaces. KW - Boundary value problem KW - Caputo fractional derivative KW - n-fixed point KW - Monotone mappings KW - Partially ordered complete metric spaces KW - Contractive CR - [1] V. Berinde, M. 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