the equations and the iterations converge when the well-posedness condition is satisfied as we mention in line 199

We thank all reviewers for the comments and the following response will be reflected in the final version. In fact, the convergence is exponential both in theory and in practice. Duchi et al. (2008) has proposed an Thus we focus on the comparison in the graph classification task. More experiments will be added. Global methods like Geom-GCN employ additional embedding approaches to capture global information.