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Macaulay2Doc :: CoherentSheaf ++ CoherentSheaf

CoherentSheaf ++ CoherentSheaf -- direct sum of coherent sheaves

Synopsis

Description

i1 : X = Proj(QQ[x,y,z])

o1 = X

o1 : ProjectiveVariety
i2 : OO_X(3) ++ OO_X(4)

        1          1
o2 = OO  (3) ++ OO  (4)
       X          X

o2 : coherent sheaf on X, free
i3 : module oo

               2
o3 = (QQ[x..z])

o3 : QQ[x..z]-module, free, degrees {-3, -4}