| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 4650645 | Discrete Mathematics | 2008 | 10 Pages |
Abstract
Steiner triple systems (STSs) with subsystems of order 7 are classified. For order 19, this classification is complete, but for order 21 it is restricted to Wilson-type systems, which contain three subsystems of order 7 on disjoint point sets. The classified STSs of order 21 are tested for resolvability; none of them is doubly resolvable.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Petteri Kaski, Patric R.J. ÖstergÅrd, Svetlana Topalova, Rosen Zlatarski,