## Abstract We give a 4βchromatic planar graph, which admits a vertex partition into three parts such that the union of every two of them induces a forest. This solves a problem posed by BΓΆhme. Also, by constructing an infinite sequence of graphs, we show that the cover degeneracy can be arbitraril
β¦ LIBER β¦
Analysis of degeneracy in the spectrum of a class of molecular graphs
β Scribed by P. C. Ojha
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 566 KB
- Volume
- 35
- Category
- Article
- ISSN
- 0020-7608
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