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arXiv math/0610477math.CO
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重构组合物

Reconstructing compositions

Vincent Vatter

摘要:

我们考虑的问题,重建一个整数的组成,从他们的子组成,这是提出了Raykova(虽然伪装成一个问题分层排列)。我们证明了n个\ge 3 k +1的每个组合w都可以从其k-缺失的集合中重建,即,包含在w中的n-k的所有合成的集合。由于存在具有相同的k-缺失集合的3 k的组合物,因此该结果是最可能的。

英文摘要:

We consider the problem of reconstructing compositions of an integer from their subcompositions, which was raised by Raykova (albeit disguised as a question about layered permutations). We show that every composition w of n\ge 3k+1 can be reconstructed from its set of k-deletions, i.e., the set of all compositions of n-k contained in w. As there are compositions of 3k with the same set of k-deletions, this result is best possible.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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