  [0.00]{}  ![\[fig:bfSimpleTestGeomechAdapted\] Basis function relative to the displacement degree of freedom in the $x$-direction associated to the innermost coarse node of a regular 0$\times$0 partition: (a) primal grid; (b) coarse ((0,0) circle (.0ex);), support boundary ((0,0) circle (.0ex);), edge ((0,0) circle (.0ex);) and internal ((0,0) circle (.0ex);) nodes; (c) MsRSB basis function using the original fine-scale system; and (d) enhanced MsRSB basis function using the filtered fine-scale system. The convergence criteria is $||e_{it}||_{\infty} < 00^{-0}$, where $e_{it}$ is the smoother update on the internal nodes (see algorithm \[alg:EnhancedMsRSB\]). However as the case with the original linear system diverges, the basis function obtained after 00 iterations is plotted in (c).](./FE_00x00_