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D.15.3.15 ChernRootsDual

Procedure from library chern.lib (see chern_lib).

Usage:
ChernRootsDual(l); l a list of polynomials

Return:
list of polynomials

Purpose:
computes the Chern roots of the dual vector bundle
of a vector bundle with Chern roots from l

Note:

Example:
 
LIB "chern.lib";
ring r = 0, (a(1..3)), dp;
// assume a(1), a(2), a(3) are the Chern roots of a vector bundle
list l=a(1..3);
// the Chern roots of the dual vector bundle
print( ChernRootsDual(l) );
==> [1]:
==>    -a(1)
==> [2]:
==>    -a(2)
==> [3]:
==>    -a(3)