On the optimal compression of sets in PSPACE

Marius Zimand

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arXiv · 1104.2816

On the optimal compression of sets in PSPACE

Marius Zimand

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Abstract

We show that if DTIME[2^{O(n)}] is not included in DSPACE[2^{o(n)}], then, for every set B in PSPACE, all strings x in B of length n can be represented by a string compressed(x) of length at most log (|B^{=n}|) + O(log n), such that a polynomial-time algorithm, given compressed(x), can distinguish x from all the other strings in B^{=n}. Modulo the O(log n) additive trem, this achieves the information-theoretical optimum for string compression.

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BibTeX RIS

Marius Zimand. 2011-04-14. On the optimal compression of sets in PSPACE. https://arxiv.org/abs/1104.2816

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