The Analysis of a Nested Dissection Algorithm.
The numerical solution of large finite element systems by explicit preconditioning semi-direct methods
The SOR Method on Parallel Computers.
The structured distance to normality of an irreducible real tridiagonal matrix.
Transfer of boundary conditions for difference equations
It is well-known that the idea of transferring boundary conditions offers a universal and, in addition, elementary means how to investigate almost all methods for solving boundary value problems for ordinary differential equations. The aim of this paper is to show that the same approach works also for discrete problems, i.e., for difference equations. Moreover, it will be found out that some results of this kind may be obtained also for some particular two-dimensional problems.