Tolerance Graphs and Orders
نویسنده
چکیده
We show that if a tolerance graph is the complement of a comparability graph it is a trapezoid graph, i.e., the complement of an order of interval dimension at most 2. As consequences we are able to give obstructions for the class of bounded tolerance graphs and to give an example of a graph which is alternatingly orientable but not a tolerance graph. We also characterize the tolerance graphs among complements of trees
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ورودعنوان ژورنال:
- Journal of Graph Theory
دوره 28 شماره
صفحات -
تاریخ انتشار 1992