Quasi-embeddings of Steiner triple systems, or Steiner triple systems of different orders with maximum intersection

2005 ◽  
Vol 13 (2) ◽  
pp. 120-138 ◽  
Author(s):  
Peter Dukes ◽  
Eric Mendelsohn
2007 ◽  
Vol 114 (2) ◽  
pp. 235-252 ◽  
Author(s):  
A.D. Forbes ◽  
M.J. Grannell ◽  
T.S. Griggs

2005 ◽  
Vol 26 (3-4) ◽  
pp. 401-416 ◽  
Author(s):  
Mike J. Grannell ◽  
Terry S. Griggs ◽  
Jozef Širáň

2001 ◽  
Vol 43 (1) ◽  
pp. 145-151 ◽  
Author(s):  
G. K. Bennett ◽  
M. J. Grannell ◽  
T. S. Griggs

We investigate cyclic bi-embeddings in an orientable surface of Steiner triple systems on 31 points. Up to isomorphism, we show that there are precisely 2408 such embeddings. The relationship of these to solutions of Heffter's first difference problem is discussed and a procedure described which, under certain conditions, transforms one bi-embedding to another.


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