Stable Minimum Storage Merging by Symmetric Comparisons

@inproceedings{Kim2004StableMS,
  title={Stable Minimum Storage Merging by Symmetric Comparisons},
  author={Pok-Son Kim and Arne Kutzner},
  booktitle={ESA},
  year={2004}
}
We introduce a new stable minimum storage algorithm for merging that needs \(O(m\log(\frac{n}{m}+1))\) element comparisons, where m and n are the sizes of the input sequences with m≤ n. According to the lower bound for merging, our algorithm is asymptotically optimal regarding the number of comparisons. 
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