Set Covering and Serre's Theorem on the
✍
Ergün Yalçin
📂
Article
📅
2001
🏛
Elsevier Science
🌐
English
⚖ 150 KB
We define a group theoretical invariant, denoted by s G , as a solution of a certain set covering problem and show that it is closely related to chl(G), the cohomology length of a p-group G. By studying s G we improve the known upper bounds for the cohomology length of a p-group and determine chl(G)