On the Spectral Property of Local Shift-splitting Preconditioner for Double Saddle Point Problems

This paper proposes a local shift-splitting preconditioner for the double saddle point matrices. Some propertiesof the local shift-splitting preconditioned double saddle point matrix are studied. Finally, numerical experiments ofa model Stokes problem are presented to show the effectiveness of the proposed preconditioner.

Keywords:

Double saddle point problem , precondition , local shift-splitting