## 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
A note on the cover
β Scribed by S.M. Silverman
- Publisher
- Elsevier Science
- Year
- 1970
- Tongue
- English
- Weight
- 108 KB
- Volume
- 290
- Category
- Article
- ISSN
- 0016-0032
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract In this note we look at the moduli space \documentclass{article}\usepackage{amssymb}\begin{document}\pagestyle{empty}${\mathcal R}\_{3,2}$\end{document} of double covers of genus three curves, branched along 4 distinct points. This space was studied by Bardelli, Ciliberto and Verra in 1
The climate of Faraday, situated at the west coast of the Antarctic Peninsula (AP), is strongly influenced by the extent of sea ice cover in the Amundsen and Bellingshausen Seas (ABS). ABS sea ice cover is negatively correlated with Faraday annual mean temperature, wind speed and cloudiness, while a