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Electronic Colloquium on Computational Complexity

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REPORTS > KEYWORD > SYMMETRIC COMPUTATION:
Reports tagged with Symmetric Computation:
TR10-070 | 17th April 2010
Eric Allender, Klaus-Joern Lange

Symmetry Coincides with Nondeterminism for Time-Bounded Auxiliary Pushdown Automata

We show that every language accepted by a nondeterministic auxiliary pushdown automaton in polynomial time (that is, every language in SAC$^1$ = LogCFL) can be accepted by a symmetric auxiliary pushdown automaton in polynomial time.

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