Abstract
Some results are obtained on the permanent of cyclic (0,1) matrices which support the conjecture that for such matrices of prime order p the number of distinct values the permanent attains is of order p. Writing e(r) for the number of distinct values the permanent of cyclic (0,1) matrices of order n can attain we found e(5) = 6, e(6) = 12, e(7) = 9, e(8) = 11, e(9) = 21, e(10) ≤ 44, and e(11) ≤ 30. It is easy to show e(p) ≤ 1/p(2p-2)+2, p prime, but these answers are considerably smaller. We obtain formulae for the permanent of cyclic (0,1) matrices in several cases.
Publication Details
Nemeth, E, Seberry, J and Shu, M, On the distribution of the permanent of cyclic (0,1) matrices, Utilitas Mathematica, 16, 1979, 171-182.