An Introduction to Quantum Sheaf Cohomology - Physics - Virginia ...

Example: CP N-1
Have N chiral superfields , each charge 1
x 1 , · · · , x N
For degree d maps, expand:
x i
= x i0 u d + x i1 u d−1 v + · · · + x id v d
where u, v are homog’ coord’s on worldsheet = P 1
Take (x ij ) to be homogeneous coord’s on M, then
M LSM
= P N(d+1)−1