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A nested Schur complement solver with mesh-independent convergence for the time domain photonics modeling. (arXiv:1901.11521v1 [math.NA])
来源于:arXiv
A nested Schur complement solver is proposed for iterative solution of linear
systems arising in exponential and implicit time integration of the Maxwell
equations with perfectly matched layer (PML) nonreflecting boundary conditions.
These linear systems are the so-called double saddle point systems whose
structure is handled by the Schur complement solver in a nested, two-level
fashion. The solver is demonstrated to have a mesh-independent convergence at
the outer level, whereas the inner level system is of elliptic type and thus
can be treated efficiently by a variety of solvers. 查看全文>>