On the Structure of Parameterized Problems in NP (Extended Abstract)

نویسندگان

  • Liming Cai
  • Jianer Chen
  • Rodney G. Downey
  • Michael R. Fellows
چکیده

Fixed-parameter intractability of optimization problems in NP is studied based on computational models with limited nondeterminism. Strong evidence is provided that many NP optimization problems are not fixed-parameter tractable and that the fixed-parameter intractability hierarchy (the W -hierarchy) does not collapse.

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عنوان ژورنال:
  • Inf. Comput.

دوره 123  شماره 

صفحات  -

تاریخ انتشار 1994