Fig. 8

Backward Euler for 2D convection–diffusion equation: time evolution of relative error: a \({{e}}_\textit{FOM}(t)\) in FOM; and b \({{e}}_\textit{ROM}(t)\) in ROM
Backward Euler for 2D convection–diffusion equation: time evolution of relative error: a \({{e}}_\textit{FOM}(t)\) in FOM; and b \({{e}}_\textit{ROM}(t)\) in ROM