Figure 2
From: Wavelet multilevel augmentation method for linear boundary value problems
\(\pmb{\varPsi _{00}}\) , \(\pmb{\varPsi _{10}}\) , \(\pmb{\varPsi _{11}}\) , \(\pmb{\varPsi _{20}}\) , \(\pmb{\varPsi _{21}}\) , \(\pmb{\varPsi _{22}}\) , \(\pmb{\varPsi _{23}}\) .
