Erlangga, Y.2015-10-302015-10-3020149786018046728http://nur.nu.edu.kz/handle/123456789/608The iterative method converges at a rate that is independent of the mesh size. The rate of convergence is comparable to that of multigrid, but is achieved with simpler components.enmultilevelBI-harmonic systemmethodmultigridmultilevel iterationAbstract