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Table 4 Different choices for \(\nu \) for cylinder problem 4, \(\epsilon _{GKB}\)=1e−5 and \(d=5\)

From: Application of an iterative Golub-Kahan algorithm to structural mechanics problems with multi-point constraints

\(\varvec{\nu }\) #iter \(\varvec{(=:k)}\) \(\varvec{\frac{\Vert \mathbf{u} - \mathbf{u} _{k}\Vert _\mathbf{M }}{\Vert \mathbf{u} \Vert _\mathbf{M }}}\) \(\varvec{\frac{\Vert \mathbf{p} - \mathbf{p} _{k}\Vert _{2}}{\Vert \mathbf{p} \Vert _{2}}}\)
\(\eta =0, \nu = 1\) (M=W) 336 \(7.88.10^{-7}\) \(6.37.10^{-6}\)
1 30 \(4.31.10^{-8}\) \(3.75.10^{-8}\)
17 13 \(4.60.10^{-11}\) \(5.02.10^{-11}\)
133 10 \(3.08.10^{-10}\) \(4.44.10^{-10}\)
357 9 \(8.87.10^{-10}\) \(6.53.10^{-10}\)