2008 | OriginalPaper | Buchkapitel
On the Complexity of Reconfiguration Problems
verfasst von : Takehiro Ito, Erik D. Demaine, Nicholas J. A. Harvey, Christos H. Papadimitriou, Martha Sideri, Ryuhei Uehara, Yushi Uno
Erschienen in: Algorithms and Computation
Verlag: Springer Berlin Heidelberg
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Reconfiguration problems arise when we wish to find a step-by-step transformation between two feasible solutions of a problem such that all intermediate results are also feasible. We demonstrate that a host of reconfiguration problems derived from NP-complete problems are PSPACE-complete, while some are also NP-hard to approximate. In contrast, several reconfiguration versions of problems in P are solvable in polynomial time.