The bell numbers and r-fold transitivity
β Scribed by Russell Merris; Stephen Pierce
- Publisher
- Elsevier Science
- Year
- 1972
- Tongue
- English
- Weight
- 92 KB
- Volume
- 12
- Category
- Article
- ISSN
- 0097-3165
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract We show that the fourβcycle has a __k__βfold list coloring if the lists of colors available at the vertices satisfy the necessary Hall's condition, and if each list has length at least β5__k__/3β; furthermore, the same is not true with shorter list lengths. In terms of __h__^(__k__)^(__
It is shown that the modes of vibration of the bell can be classified into families according to their behaviour under the symmetry operations of the undistorted bell. These families are characterized by the number of nodal meridians rather than the number of nodal circles used in the usual ad hoc c