Recognizing interval digraphs and interval bigraphs in polynomial time
نویسندگان
چکیده
منابع مشابه
Recognizing Interval Bigraphs by Forbidden Patterns
Let H be a connected bipartite graph with n vertices and m edges. We give an O(nm) time algorithm to decide whether H is an interval bigraph. The best known algorithm has time complexity O(nm(m + n) log n) and it was developed in 1997 [18]. Our approach is based on an ordering characterization of interval bigraphs introduced by Hell and Huang [13]. We transform the problem of finding the desire...
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ژورنال
عنوان ژورنال: Discrete Applied Mathematics
سال: 1997
ISSN: 0166-218X
DOI: 10.1016/s0166-218x(97)00027-9