OFFSET
4,1
COMMENTS
A SOLSSOM is a self-orthogonal Latin square with a symmetric orthogonal mate. Two SOLSSOMs (L,S) and (L',S') are transpose-isomorphic if a permutation applied to the rows, columns and symbols of L and S maps (L,S) to (L',S') or (L'',S') (where L'' is the transpose of L').
REFERENCES
A.P. Burger, M.P. Kidd and J.H. van Vuuren, Enumeration of self-orthogonal Latin squares with symmetric orthogonal mates, Submitted to LitNet Akademies (Natuurwetenskappe)
CROSSREFS
KEYWORD
hard,more,nonn
AUTHOR
Martin P Kidd, Oct 21 2009
EXTENSIONS
Class name and definition corrected by Martin P Kidd, Nov 01 2010
STATUS
approved