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Theory and Modern Applications

Table 1 Error estimates between the exact and regularized solutions for \(\tau = 1.6\), \(\alpha \in \{0.65, 0.75, 0.85, 0.95\}\)

From: Identification of source term for the ill-posed Rayleigh–Stokes problem by Tikhonov regularization method

 

ϵ

 

0.1

0.01

0.001

 

α = 0.65

\(\mathit{Err}^{\beta _{\mathrm{pri}}}\)

0.067015108159255

0.047468902109316

0.041441591914833

\(\mathit{Err}^{\beta _{\mathrm{pos}}}\)

0.098997404519191

0.044495631182970

0.040535488144887

 

α = 0.75

\(\mathit{Err}^{\beta _{\mathrm{pri}}}\)

0.084761583230752

0.028602688042509

0.024458932308338

\(\mathit{Err}^{\beta _{\mathrm{pos}}}\)

0.053156432449751

0.028231628315379

0.024378712621981

 

α = 0.85

\(\mathit{Err}^{\beta _{\mathrm{pri}}}\)

0.130209694916768

0.021179319121018

0.015465349519243

\(\mathit{Err}^{\beta _{\mathrm{pos}}}\)

0.122475577340357

0.024601414585993

0.015239026338959

 

α = 0.95

\(\mathit{Err}^{\beta _{\mathrm{pri}}}\)

0.037276991722023

0.010256764619097

0.008742004875893

\(\mathit{Err}^{\beta _{\mathrm{pos}}}\)

0.134846446943958

0.010076794618172

0.009621545639896