Abstract
This paper investigates the existence and nonexistence of positive solutions for a weighted integral system associated with the weighted Hardy–Littlewood–Sobolev inequalities in a bounded domain Ω⊂Rn. We apply the mountain pass theorem to demonstrate the existence of a solution to this system and prove the nonexistence of a solution for it by means of the Pohozaev identity. We also use the above methods to prove the existence and nonexistence of positive solutions for a Hénon-type integral system.
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