Lattices with few distances
β Scribed by J.H. Conway; N.J.A. Sloane
- Publisher
- Elsevier Science
- Year
- 1991
- Tongue
- English
- Weight
- 699 KB
- Volume
- 39
- Category
- Article
- ISSN
- 0022-314X
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
## Abstract The number of distinct eigenvalues of the adjacency matrix of a graph is bounded below by the diameter of the graph plus one. Many graphs that achieve this lower bound exhibit much symmetry, for example, distanceβtransitive and distanceβregular graphs. Here we provide a recursive constr
Given a set of n blue and n red points in the plane, not all on a line, it is shown that there exists a bichromatic line passing through at most two blue points and at most two red points. There does not necessarily exist a line passing through precisely one blue and one red point. This result is ex