Solving Sparse Integer Linear Systems

Details Solving Sparse Integer Linear Systems Solving Sparse Integer Linear Systems

2006-03-21

arxiv.org/abs/cs/0603082v1

Computer Science

Symbolic Computation

Scientific paper

We propose a new algorithm to solve sparse linear systems of equations over the integers. This algorithm is based on a $p$-adic lifting technique combined with the use of block matrices with structured blocks. It achieves a sub-cubic complexity in terms of machine operations subject to a conjecture on the effectiveness of certain sparse projections. A LinBox-based implementation of this algorithm is demonstrated, and emphasizes the practical benefits of this new method over the previous state of the art.

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