sheaf Ring -- make the structure sheaf

sheaf Ring -- make the structure sheaf

Synopsis:

Function: sheaf -- make a coherent sheaf

Input:

an instance of class Ring.

Output:

an instance of class SheafOfRings.

sheaf R -- produce the structure sheaf on the projective variety Proj R.

Code:

     -- ../../../Macaulay2/m2/varieties.m2:48
     Ring ~ := sheaf Ring := SheafOfRings => R -> new SheafOfRings from { symbol variety => Proj R, symbol ring => R }