Electronic Journal of Differential Equations, Vol. 2021 (2021), No. 28, pp. 1-11. Title: Weakly monotone decreasing solutions to elliptic Schrodinger integral system Author: Edward Chernysh (McGill Univ., Montreal, QC, Canada) Abstract: In this article, we study positive solutions to an elliptic Schrodinger system in Rn for n≥2. We give general conditions guaranteeing the non-existence of positive solutions and introduce weakly monotone decreasing functions. We also establish lower-bounds on the decay rates of positive solutions and obtain upper-bounds when these are weakly monotone decreasing. Submitted May 4, 2019. Published April 13, 2021. Math Subject Classifications: 35J60, 45G15, 35B45. Key Words: Elliptic Schrodinger system; poly-harmonic equation; a priori decay estimate; weakly monotone decreasing solution.