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Abstract: We prove that several problems associated to probabilistic finite automata are undecidable for automata whose number of input letters and number of states are fixed. As a corollary of one of our results we prove that the problem of determining if the set of all products of two 47 × 47 matrices with nonnegative rational entries is bounded is undecidable. (Update)
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BibTeX entry: (Update)
V. C. V. D. Blondel, "Undecidable problems for probabilistic automata of fixed dimension," Theory of Computing Systems, vol. 36, no. 3, pp. 231--245, 2003. http://citeseer.ist.psu.edu/blondel01undecidable.html More
@misc{ blondel03undecidable,
author = "V. Blondel",
title = "Undecidable problems for probabilistic automata of fixed dimension",
text = "V. C. V. D. Blondel, Undecidable problems for probabilistic automata of
fixed dimension, Theory of Computing Systems, vol. 36, no. 3, pp. 231--245,
2003.",
year = "2003",
url = "citeseer.ist.psu.edu/blondel01undecidable.html" }
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