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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)
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