We analyze the blowup problems to the nonlinear Schr(o)dinger equation with har-monic potential. This equation always models the Bose-Einstein condensation in lower dimensions. It is known that the mass of the blowup solutions from radially symme-tric initial data can concentrate on the point of blowup. In this paper based on the refined compactness lemma, we extend the result to general data.
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