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chern(ZZ,AbstractSheaf) -- compute a Chern class of a sheaf

Synopsis

Description

i1 : base(3, Bundle => (A,2,a), Bundle => (B,3,b))

o1 = a variety

o1 : an abstract variety of dimension 3
i2 : chern_3 B

o2 = b
      3

o2 : QQ[a ..a , b ..b ]
         1   2   1   3
i3 : chern(2,A**B)

       2                  2
o3 = 3a  + 3a  + 5a b  + b  + 2b
       1     2     1 1    1     2

o3 : QQ[a ..a , b ..b ]
         1   2   1   3

See also

Ways to use this method: