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Schubert2 :: abstractVariety(ZZ,Ring)

abstractVariety(ZZ,Ring) -- make an abstract variety

Synopsis

Description

i1 : X = abstractVariety(3, QQ[c,d,Degrees=>{1,2}])

o1 = X

o1 : an abstract variety of dimension 3
i2 : F = abstractSheaf(X, ChernCharacter => 3+c+d)

o2 = F

o2 : an abstract sheaf of rank 3 on X
i3 : chern F

              1 2         1 3
o3 = 1 + c + (-c  - d) + (-c  - c*d)
              2           6

o3 : QQ[c..d]
i4 : integral oo

              1 3
o4 = integral(-c  - c*d)
              6

o4 : Expression of class Adjacent