Fig. 9
From: Large scale random fields generation using localized Karhunen–Loève expansion
Computational time of the standard KLE (blue circle markers) and the generation by KLE prolongation (red cross markers). Tensorizable correlation function in Eq. (38) on the left. Non-tensorizable correlation function of Eq. (37) on the right. KLE truncation error \(\epsilon ^2_{KL}=0.001\). Slope of the dashed lines indicated on the figures