|
 |
 |
 |
 |
 |
 |
 |
 |
 |
D.5.17.29 multipleCover
Procedure from libraryschubert.lib (see schubert_lib).
- Usage:
- multipleCover(d); d int
- Return:
- number
- Theory:
- This is the contribution of degree d multiple covers of a smooth rational curve as a Gromov-Witten invariant.
LIB "schubert.lib"; ring r = 0,x,dp; multipleCover(1); ==> 1 multipleCover(2); ==> 1/8 multipleCover(3); ==> 1/27 multipleCover(4); ==> 1/64 multipleCover(5); ==> 1/125 multipleCover(6); ==> 1/216 |