Figure 2From: An iterative algorithm for hierarchical fixed point problems for a finite family of nonexpansive mappings The convergence of \(\pmb{\{u_{n}\}}\) , \(\pmb{\{y_{n}\}}\) and \(\pmb{\{ x_{n}\}}\) with initial values \(\pmb{x_{1} = -20}\) and \(\pmb{x_{1} = 30}\) . Back to article page