A wavelet-based algebraic multigrid preconditioning for iterative solvers in finite-element analysis - Pereira, Fábio Henrique; Palin, Marcelo Facio; Verardi, Sérgio Luís Lopes; Silva, Viviane Cristine; Cardoso, José Roberto; Nabeta, Silvio Ikuyo (IEEE Transactions on Magnetics, 2007)