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20172024
most citedSchur complement preconditioners for multiple saddle point problems of block tridiagonal form with application to optimization problems

28 citations · 56 across the 11 of their papers we have counts for

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math.NA2024

A robust and time-parallel preconditioner for parabolic reconstruction problems using Isogeometric Analysis

Kent-Andre Mardal, Jarle Sogn, Stefan Takacs

We consider a PDE-constrained optimization problem of tracking type with parabolic state equation. The solution to the problem is characterized by the Karush-Kuhn-Tucker (KKT) syst…