摘 要: | This paper is concerned with time decay rates for weak solutions to a class system of isotropicincompressible non-Newtonian fluid motion in R~n.With the use of the spectral decomposition methods ofStokes operator,the optimal decay estimates of weak solutions in L~2 norm are derived under the differentconditions on the initial velocity.Moreover,the error estimates of the difference between non-Newtonian flowand Navier-Stokes flow are also investigated.
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