Fig. 10From: Effect of the separated approximation of input data in the accuracy of the resulting PGD solutionSeparation of the discontinuous diffusivity function using SVD. Top left panel shows the analytic diffusivity function \(k_2\). Top right panel show the relative weight of the initial 45 terms of the separated function; 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