Computing a sparse basis for the null space

@inproceedings{Gilbert1987ComputingAS,
  title={Computing a sparse basis for the null space},
  author={John R. Gilbert},
  year={1987}
}
We present algorithms for computing a sparse basis for the null space of a sparse underdetermined matrix. We describe several possible computational strategies, both combinatorial and noncombinatorial in nature, and we compare their effectiveness for several test problems. 

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