NP - Completeness for Problems of BoundedWidth :
نویسندگان
چکیده
The parameterized computational complexity of a collection of well-known problems including: Bandwidth, Precedence constrained k-processor scheduling, Longest Common Subsequence, DNA physical mapping (or Intervalizing colored graphs), Perfect phylogeny (or Triangulating colored graphs), Colored cutwidth, and Feasible register assignment is explored. It is shown that these problems are hard for various levels of the W hierarchy. In the case of Precedence constrained k-processor scheduling the results can be interpreted as providing substantial new complexity lower bounds on the outcome of OPEN 8] of the Garey and Johnson list. We also obtain the conjectured \third strike" against Perfect phylogeny.
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