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D.15.3.16 chDual

Procedure from library chern.lib (see chern_lib).

Usage:
chDual(c); c list of polynomials

Return:
list of polynomials

Purpose:
computes the list of Chern classes of the dual vector bundle

Note:

Example:
 
LIB "chern.lib";
// Chern classes of a vector bundle that is dual to a vector bundle
// with Chern classes c(1), c(2), c(3)
ring r=0, (c(1..3)), dp;
list l=c(1..3);
print(chDual(l));
==> [1]:
==>    -c(1)
==> [2]:
==>    c(2)
==> [3]:
==>    -c(3)


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