Publisher's Synopsis
Excerpt from On the Complexity of Motion Planning for Multiple Independent Objects: Pspace Hardness of the "Warehouseman's Problem"
Only that part of the string (1) which stands to the left of the symbol 1' is considered to be 'significant': the remainder is regarded as a mere 'pool' of symbols which can be moved into this significant part, and also as a 'storage area' into which symbols moved from the significant part of (1) can be placed. The transposition problem we seek to solve is: can the string (1) be transformed, by a valid sequence of moves, into (2) mogihzlo'l 1' [min] [miz] [mic] [m61] [mizi [mic.
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