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Table 1 RMSEs between the usual POD SPDMFE and optimized SPDMFE extrapolation solutions

From: An optimized SPDMFE extrapolation approach based on the POD technique for 2D viscoelastic wave equation

  N  = 50 N  = 100 N  = 150 N  = 200
u 1.48E − 4 2.24E − 4 3.37E − 4 4.68E − 4
\(p_{1}\) 1.12E − 4 2.35E − 4 3.64E − 4 4.72E − 4
\(p_{2}\) 1.38E − 4 2.23E − 4 3.36E − 4 4.82E − 4