Construction of two symmetric block designs for \((71,21,6)\) (Q1058514)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: Construction of two symmetric block designs for \((71,21,6)\) |
scientific article; zbMATH DE number 3900766
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Construction of two symmetric block designs for \((71,21,6)\) |
scientific article; zbMATH DE number 3900766 |
Statements
Construction of two symmetric block designs for \((71,21,6)\) (English)
0 references
1985
0 references
The authors have constructed a \((71,21,6)\) symmetric block design which is not isomorphic to its dual. Its full collineation group is a non-Abelian group of order 21. The group has 7 orbits of points and blocks.
0 references
symmetric block design
0 references
collineation group
0 references
0.9034584
0 references
0 references
0.8610319
0 references
0.8567435
0 references
