The basic formula for intersecting a boundary divisor with an F-curve is found in Keel and McKernan's paper.
i1 : L1={ {{{2,1},{3},{4},{5}},-2}, {{{1,3},{2},{4},{5}},-7}, {{{1,4},{2},{3},{5}},1}}; |
i2 : C=curveClassRepresentativeM0nbar(5,L1); |
i3 : L2={ {{1,3},1}, {{1,4},1}}; |
i4 : D=divisorClassRepresentativeM0nbar(5,L2); |
i5 : intersection(C,D) o5 = 6 |
The object intersection is a method function.