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D.15.2.12 chHE
Procedure from library chern.lib (see chern_lib).
- Usage:
- chHE(c); c list of polynomials
- Return:
- polynomial
- Purpose:
- computes the highest relevant term of the Chern character
- Note:
- uses the elimination and is extremely inefficient,
is included just for comparison with chAll(c)
Example:
| LIB "chern.lib";
ring r = 0, (c(1..3)), dp;
list l=c(1..3);
//the third degree term of the Chern character
print( chHE(l) );
==> -1/6*c(1)^3+1/2*c(1)*c(2)-1/2*c(3)
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