Fig. 5From: 3-D inversion of magnetic data based on the L1–L2 norm regularizationCross-sections of the synthetic model. Cross-section through the \(x=0\,\hbox {km}\) profile of the models derived by L1 norm regularization with a no bound constraint, with bound constraint of b \({\varvec{\beta} }\le 2\), and c \(\varvec{\beta }\le 4\). White squares indicate the location of the magnetized blocks of the true modelBack to article page