Following are the 2008 technical reports from the numerical computing group at the University of Iowa, principally from the Dept of Mathematics. These reports are available from our departmental anonymous ftp site. Click here to access that site.
172 [.ps.gz, .pdf]. L.O. Jay and D. Negrut, A second order extension of the generalized-&alpha method for constrained systems in mechanics. April 2008.
173 [arXiv:0809.0021v1 [math.NA]]. K. Atkinson, D. Chien, and O. Hansen. A spectral method for elliptic equations: the Dirichlet problem. August 2008.