Dj. Evans et R. Abdullah, THE COMPUTATIONAL-COMPLEXITY OF THE QUADRANT INTERLOCKING (QI) ITERATIVE METHODS ON SHARED-MEMORY PARALLEL COMPUTERS, International journal of computer mathematics, 67(3-4), 1998, pp. 391-410
In this paper the Quadrant Interlocking (QI) matrix splitting is shown
to yield parallel iterative methods for the solution of linear equati
ons with improved convergence rates for both synchronous and asynchron
ous versions of the algorithms.