Summary
We consider a problem of regrouping data collected in blocks of up to r elements by steps involving the data of not more than k blocks each.
The problem consists in giving a lower estimate for the minimum number of steps involved. The estimates are derived from the entropies of certain probability distributions pertinent to the given collections of blocks.
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Paul, W.J., Stoß, H.J. Zur Komplexität von Sortierproblemen. Acta Informatica 3, 217–225 (1974). https://doi.org/10.1007/BF00288635
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DOI: https://doi.org/10.1007/BF00288635