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An optimal construction of Hanf sentences

Abstract : We give a new construction of formulas in Hanf normal form that are equivalent to first-order formulas over structures of bounded degree. This is the first algorithm whose running time is shown to be elementary. The triply exponential upper bound is complemented by a matching lower bound.
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https://hal.inria.fr/hal-00776607
Contributor : Benedikt Bollig <>
Submitted on : Tuesday, January 15, 2013 - 5:48:17 PM
Last modification on : Friday, April 2, 2021 - 8:38:05 AM

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Benedikt Bollig, Dietrich Kuske. An optimal construction of Hanf sentences. Journal of Applied Logic, Elsevier, 2012, 10 (2), pp.179-186. ⟨10.1016/j.jal.2012.01.002⟩. ⟨hal-00776607⟩

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