𝔖 Bobbio Scriptorium
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The special number: A compleat roadmap

✍ Scribed by Emory L. Cowen


Publisher
Springer US
Year
1982
Tongue
English
Weight
679 KB
Volume
10
Category
Article
ISSN
0091-0562

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## Abstract The interval number of a graph __G__ is the least natural number __t__ such that __G__ is the intersection graph of sets, each of which is the union of at most __t__ intervals, denoted by __i__(__G__). Griggs and West showed that $i(G)\le \lceil {1\over 2} (d+1)\rceil $. We describe the