Séminaire Lotharingien de Combinatoire, B39b (1997), 14pp.
Group Actions on Magic Squares
Two types of magic n times n squares are studied -
the pandiagonal squares and the W-squares, in which the coefficients
of all 2 times 2 submatrices have the same sum.
For n between 4 and 8 big groups - in general wreath products - are
described which act on sets of these magic squares.
Received: November 6, 1997; Accepted: January 27, 1998.
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