#8745: Steiner Triple Systems
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Reporter: ncohen | Owner: sage-combinat
Type: enhancement | Status: new
Priority: major | Milestone: sage-4.4
Component: combinatorics | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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This patch adds a function to block_design returning a Steiner Triple
System on any number of vertices n congruent to 1 or 3 modulo 6. There is
none otherwise :-)
The function is pretty short, a satisfiable decomposition being
explicitely given in the reference :
http://www.utu.fi/~honkala/designs.ps
Nathann
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8745>
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