Upper-embeddable graphs and related topics
β Scribed by Nguyen Huy Xuong
- Publisher
- Elsevier Science
- Year
- 1979
- Tongue
- English
- Weight
- 366 KB
- Volume
- 26
- Category
- Article
- ISSN
- 0095-8956
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## Abstract In this paper, we prove the following result: Every graph obtained by connecting (with any number of edges) two vertexβdisjoint upperβembeddable graphs graphs with even Betti number is upperβembeddable.
## Abstract In this Note it is proved that every connected, locally connected graph is upper embeddable. Moreover, a lower bound for the maximum genus of the square of a connected graph is given.
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