1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
% Cowell et al p72 G = zeros(10); G(1,2)=1; G(2,3)=1; G(3,7)=1; G(4,[5 8])=1; G(5,6)=1; G(6,7)=1; G(7,[9 10])=1; G(8,9)=1; dsep(1, 4, [5 7], G) dsep(1, 4, [7], G) dsep(1, 4, [10 5], G)