Home Online Manual
Top
Back: contributionBundle
Forward: multipleCover
FastBack:
FastForward:
Up: schubert_lib
Top: Singular Manual
Contents: Table of Contents
Index: Index
About: About this document

D.5.17.28 normalBundle

Procedure from library schubert.lib (see schubert_lib).

Return:
number

Input:
M is a moduli space of stable maps, G is a graph

Output:
a number corresponding to the normal bundle on a moduli space of stable maps at a graph

hypersurfaces

Example:
 
LIB "schubert.lib";
ring r = 0,x,dp;
variety P = projectiveSpace(4);
stack M = moduliSpace(P,2);
def F = fixedPoints(M);
graph G = F[1][1];
number f = normalBundle(M,G);
f <> 0;
==> 1
See also: contributionBundle.