Given a decreasing sequence {aⁿ} of nonnegative terms, we prove that there exist subsequences {nk } of {n} such that ∑k=1∞nk+1−nkank and ∑n=1∞an have the same convergence. In particular, ∑n=1∞an ...
Mathematics of Computation, Vol. 80, No. 275 (JULY 2011), pp. 1459-1498 (40 pages) We propose and analyze a finite element method for a semi-stationary Stokes system modeling compressible fluid flow ...