Open-interval graphs versus closed-interval graphs (Q1086256)
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scientific article; zbMATH DE number 3983225
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Open-interval graphs versus closed-interval graphs |
scientific article; zbMATH DE number 3983225 |
Statements
Open-interval graphs versus closed-interval graphs (English)
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1987
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It is proved that a countable graph is a closed-interval graph if and only if it is an open-interval graph. A counter-example is given for uncountable graphs. Also the case of unit length intervals is studied.
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infinite graph
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interval graph
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