
Approximating inverse FEM matrices on nonuniform meshes with Hmatrices
We consider the approximation of the inverse of the finite element stiff...
read it

ℋinverses for RBF interpolation
We consider the interpolation problem for a class of radial basis functi...
read it

Analysis of parallel Schwarz algorithms for timeharmonic problems using block Toeplitz matrices
In this work we study the convergence properties of the onelevel parall...
read it

Approximating inverse FEM matrices on nonuniform meshes with Hmatrice
We consider the approximation of the inverse of the finite element stiff...
read it

Minimal Rank Completions for Overlapping Blocks
We consider the multiobjective optimization problem of choosing the bot...
read it

Robust iteration methods for complex systems with an indefinite matrix term
Complex valued systems with an indefinite matrix term arise in important...
read it

An allatonce preconditioner for evolutionary partial differential equations
In [McDonald, Pestana and Wathen, SIAM J. Sci. Comput., 40 (2018), pp. A...
read it
ℋmatrix approximability of inverses of FEM matrices for the timeharmonic Maxwell equations
The inverse of the stiffness matrix of the timeharmonic Maxwell equation with perfectly conducting boundary conditions is approximated in the blockwise lowrank format of ℋmatrices. We prove that root exponential convergence in the block rank can be achieved if the block structure conforms to a standard admissibility criterion.
READ FULL TEXT
Comments
There are no comments yet.