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On the complexity of reconfiguration problems
2011
Theoretical Computer Science
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.
doi:10.1016/j.tcs.2010.12.005
fatcat:l7sg6nwunbht7ib6cx6efaa6ma