“…For example, Bae and Jin , Brandolese , and Schonbek considered the decay rates of solutions on the whole space . Bae and Choe , Borchers and Miyakawa , Fujigaki and Miyakawa , Han , and He and Wang studied asymptotic behavior for weak and strong solutions in with 1 < q < ∞ . For relevant topics, refer to and the references therein.…”