Alan Hartman, Yoav Medan
Discrete Applied Mathematics
A Steiner quadruple system of order v is a set X of cardinality v, and a set Q, of 4-subsets of X, called blocks, with the property that every 3-subset of X is contained in a unique block. A Steiner quadruple system is resolvable if Q can be partitioned into parallel classes (partitions of X). A necessary condition for the existence of a resolvable Steiner quadruple system is that v≡4 or 8 (mod 12). In this paper we show that this condition is also sufficient for all values of v, with 24 possible exceptions. © 1987.
Alan Hartman, Yoav Medan
Discrete Applied Mathematics
Ahmed M. Assaf, Alan Hartman
Discrete Mathematics
Alan Hartman, Mika Katara, et al.
ESEC/FSE 2007
Alan Hartman, Kenneth Nagin
UML Satellite Activities 2004