Abstract
The long time behavior of solutions of the nonautonomous three-components reversible Gray-Scott system defined on the entire spaceânis studied when the external forcing terms are unbounded in a phase space. The existence of a pullback global attractor for the equation is established inL2ân3andH1ân3, respectively. The pullback asymptotic compactness of solutions is proved by using uniform estimates on the tails of solutions on unbounded domains.
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