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For a given , what is the smallest number such that every sequence of length is determined by the multiset of all its -subsequences? This is called the -deck problem for sequence reconstruction, and has been generalized to the two-dimensional case – reconstruction of -matrices from submatrices. Previous works show that the smallest is at most for sequences and at most for matrices. We study this -deck problem for general dimension and prove that, the smallest is at most for reconstructing a dimensional hypermatrix of order from the multiset of all its subhypermatrices of order .

生成讲解博客的中文版本

生成AI智能校验的中文版本