Maximal σ-polynomials of connected 3-chr
✍
Ioan Tomescu
📂
Article
📅
2003
🏛
John Wiley and Sons
🌐
English
⚖ 113 KB
👁 1 views
## Abstract In the set of graphs of order __n__ and chromatic number __k__ the following partial order relation is defined. One says that a graph __G__ is less than a graph __H__ if __c__~__i__~(__G__) ≤ __c__~__i__~(__H__) holds for every __i__, __k__ ≤ __i__ ≤ __n__ and at least one inequality is