%0 Journal Article
%T On the optimal compression of sets in PSPACE
%A Marius Zimand
%J Computer Science
%D 2011
%I arXiv
%X 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.
%U http://arxiv.org/abs/1104.2816v1