In this paper we use the fixed point index theory to study the existence of positive radial solutions for a system of boundary value problems with semipositone second order elliptic equations. Some appropriate concave and convex functions are utilized to characterize coupling behaviors of our nonlinearities.
Citation: Limin Guo, Jiafa Xu, Donal O'Regan. Positive radial solutions for a boundary value problem associated to a system of elliptic equations with semipositone nonlinearities[J]. AIMS Mathematics, 2023, 8(1): 1072-1089. doi: 10.3934/math.2023053
In this paper we use the fixed point index theory to study the existence of positive radial solutions for a system of boundary value problems with semipositone second order elliptic equations. Some appropriate concave and convex functions are utilized to characterize coupling behaviors of our nonlinearities.
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