A note on tolerance graph recognition
نویسندگان
چکیده
A graph G=(V; E) is a tolerance graph if there is a set I={Iv | v∈V} of closed real intervals and a set ={ v | v∈V} of positive real numbers such that (x; y)∈E ⇔ |Ix∩ Iy|¿min{ x; y}. We show that every tolerance graph has a polynomial size integer representation. It follows that tolerance graph recognition is in NP. c © 2004 Elsevier B.V. All rights reserved.
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ورودعنوان ژورنال:
- Discrete Applied Mathematics
دوره 143 شماره
صفحات -
تاریخ انتشار 2004