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3 votes
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Difficulty of graph coloring and independent set?

Given a graph on $n$ vertices it is strongly $NP$-complete to decide it is $3$-colorable while it is easy to decide it is $n$-colorable. Is there a parsimonious reduction from SUBSET-SUM to GRAPH-3-...
VS.'s user avatar
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7 votes
3 answers
773 views

Hard problems for bounded vertex cover

We know that list coloring problem is W[1]-hard when parameterized by vertex cover. Are there any other problems which are also W[1]-hard parameterized by vertex cover?
Kumar's user avatar
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