IBP-EC
1996/03:
Rapport de Recherche EC /
EC research reports
10 pages - Avril/April 1996 -
Document en anglais.
PostScript : Ko /Kb
Titre / Title: An isoperimetric problem in Cayley graphs
Abstract : We show that the size of the neighboor of a set of vertices in a Cayley graph defined by a minimal generating set achieves its minimal value on a set of cardinality 2. This work improves considerably results by Godsil, Akers and Krishnamurthy, Alspach, Baumslag and the present authors