Title
Steiner triple systems of order 19 and 21 with subsystems of order 7
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.
Year
DOI
Venue
2008
10.1016/j.disc.2006.06.038
Discrete Mathematics
Keywords
Field
DocType
steiner triple system,subsystem,doubly resolvable design,classification,type system
Ordered set,Discrete mathematics,Combinatorics,Monad (category theory),Disjoint sets,Mathematics,Steiner system
Journal
Volume
Issue
ISSN
308
13
Discrete Mathematics
Citations 
PageRank 
References 
5
0.63
4
Authors
4
Name
Order
Citations
PageRank
Petteri Kaski191266.03
Patric R.J. Östergård2446.22
Svetlana Topalova3258.30
Rosen Zlatarski450.97