-- -*- M2-comint -*- {* hash: -792253698 *} i1 : R = QQ[a..f]; i2 : G = cycle(R,4) o2 = Graph{edges => {{a, b}, {b, c}, {c, d}, {a, d}}} ring => R vertices => {a, b, c, d, e, f} o2 : Graph i3 : isSCM G o3 = false i4 : H = graph(monomialIdeal(a*b,b*c,c*d,a*d,a*e)); --4-cycle with whisker i5 : isSCM H o5 = true i6 : isSCM(H,Gins=>true) --use Gins technique o6 = true i7 :