Three Partition Refinement Algorithms
@article{Paige1987ThreePR,
title={Three Partition Refinement Algorithms},
author={Robert Paige and Robert Endre Tarjan},
journal={SIAM J. Comput.},
year={1987},
volume={16},
pages={973-989}
}We present improved partition refinement algorithms for three problems: lexicographic sorting, relational coarsest partition, and double lexical ordering. Our double lexical ordering algorithm uses a new, efficient method for unmerging two sorted sets.
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