A characterization of cycle-free unit probe interval graphs
β Scribed by David E. Brown; J. Richard Lundgren; Li Sheng
- Book ID
- 108112780
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 569 KB
- Volume
- 157
- Category
- Article
- ISSN
- 0166-218X
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One of the first characterizations of interval graphs, given by Lekkerkerker and Boland (1962), uses the concept of an asteroidal triple. In this paper we give a similar characterization on the proper interval graphs using the akin concept of an astral triple.