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Table 1 Definition of the cylinder test problems Prob. 1 to Prob. 4

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

  \({\varvec{m}}\) \({\varvec{n}}\) \({\varvec{nnz}}\) (Mm) \({\varvec{nnz}}\) (A) \({\varvec{nnz}}\) (W)
Prob. 1 648 210 30080 1259 28,296
Prob. 2 2520 714 1,47,800 4985 139,636
Prob. 3 6384 1674 4,09,246 10,045 3,92,816
Prob. 4 46,620 8814 33,67,462 26,436 32,62,086