Fig. 5From: Effect of the separated approximation of input data in the accuracy of the resulting PGD solutionSeparation of the diffusivity function using SVD. Top left panel shows the analytic diffusivity function k. Top right panel show the relative weight of the initial 30 terms of the separated functions; the relative weight is computed as the sum of the amplitude of all previous terms, divided by largest amplitude. Lower panels show the functions F and G corresponding to the initial four termsBack to article page