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D.5.17.14 topChernClass

Procedure from library schubert.lib (see schubert_lib).

Usage:
topChernClass(S); S sheaf

Return:
poly

Input:
S is a sheaf

Theory:
This is the top Chern class of a sheaf

Example:
 
LIB "schubert.lib";
variety G = Grassmannian(2,4);
def R = G.baseRing;
setring R;
sheaf S = makeSheaf(G,quotientBundle);
sheaf B = S^3;
topChernClass(B);
==> 27*q(2)^2
See also: ChernClass; totalChernClass.

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