NAMay 23, 2016
Efficient preconditioners for saddle point systems with trace constraints coupling 2D and 1D domainsMiroslav Kuchta, Magne Nordaas, Joris C. G. Verschaeve et al.
We study preconditioners for a model problem describing the coupling of two elliptic subproblems posed over domains with different topological dimension by a parameter dependent constraint. A pair of parameter robust and efficient preconditioners is proposed and analyzed. Robustness and efficiency of the preconditioners is demonstrated by numerical experiments.