122 citations · 654 across the 35 of their papers we have counts for
3 papers · 1 filter
Optimal-order isogeometric collocation at Galerkin superconvergent points
Monica Montardini, Giancarlo Sangalli, Lorenzo Tamellini
In this paper we investigate numerically the order of convergence of an isogeometric collocation method that builds upon the least-squares collocation method presented in [1] and t…
Fast formation of isogeometric Galerkin matrices by weighted quadrature
Francesco Calabrò, Giancarlo Sangalli, Mattia Tani
In this paper we propose an algorithm for the formation of matrices of isogeometric Galerkin methods. The algorithm is based on three ideas. The first is that we perform the extern…
Isogeometric preconditioners based on fast solvers for the Sylvester equation
Giancarlo Sangalli, Mattia Tani
We consider large linear systems arising from the isogeometric discretization of the Poisson problem on a single-patch domain. The numerical solution of such systems is considered…