Date of Award
2000
Document Type
Project
Degree Name
Master of Arts in Mathematics
Department
Mathematics
Abstract
A Steiner system T with parameters (5,6,12) is a collection of 6-element sets, called hexads, of a 12-element set [omega], such that any 5 of the 12 elements belong to exactly one hexad. In this project we construct a graph whose vertices are the orbits of S₁₂ on T x T, where T is the set of all Steiner systems S(5,6,12). Two vertices are joined if an orbit is taken into another under the action of a transposition. The number of hexads common to two Steiner systems are also given. We also prove that any two Steiner systems with parameters (5,6,12) can intersect only in 0, 12, 24, 36, or 60 hexads.
Recommended Citation
Dillard, Kristin Marie, "Steiner systems of the Mathieu Group M₁₂" (2000). Theses Digitization Project. 1587.
https://scholarworks.lib.csusb.edu/etd-project/1587
