Title of article
The complexity of colouring by locally semicomplete digraphs
Author/Authors
Bang-Jensen، نويسنده , , Jّrgen and MacGillivray، نويسنده , , Gary and Swarts، نويسنده , , Jacobus، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2010
Pages
10
From page
2675
To page
2684
Abstract
In this paper we establish a dichotomy theorem for the complexity of homomorphisms to fixed locally semicomplete digraphs. It is also shown that the same dichotomy holds for list homomorphisms. The polynomial algorithms follow from a different, shorter proof of a result by Gutjahr, Welzl and Woeginger.
Keywords
Locally semicomplete digraphs , Digraph homomorphism , Complexity , NP-Completeness , Polynomial algorithm
Journal title
Discrete Mathematics
Serial Year
2010
Journal title
Discrete Mathematics
Record number
1599421
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