Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4654649 | European Journal of Combinatorics | 2008 | 7 Pages |
Abstract
Let LL be a finite set associated with cliques of a distance-regular graph of order (s,t)(s,t), with dd-cliques of Johnson graphs and antipodal distance-regular graphs of diameter dd, respectively. If we partially order LL by the ordinary inclusion, three families of finite atomic lattices are obtained. This article discusses their geometricity, and computes their characteristic polynomials.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Kaishun Wang, Zengti Li,