DrestrictionComplex -- derived restriction complex of a D-module

• Usage:

  N = DrestrictionComplex(M,w), NI = DrestrictionComplex(I,w)

• Inputs:
  • M, a module, over the Weyl algebra D
  • I, an ideal, which represents the module M = D/I
  • w, a list, a weight vector
• Optional inputs:
  • Strategy => ..., default value Schreyer,
• Outputs:
  • N, a hash table
  • NI, a hash table

i1 : R = QQ[x_1,x_2,D_1,D_2,WeylAlgebra=>{x_1=>D_1,x_2=>D_2}]

o1 = R

o1 : PolynomialRing, 2 differential variable(s)

i2 : I = ideal(x_1, D_2-1) 

o2 = ideal (x , D  - 1)
             1   2

o2 : Ideal of R

i3 : DrestrictionComplex(I,{1,0})

                              1                 1
o3 = 0  <-- 0 <-- (QQ[x , D ])  <-- (QQ[x , D ])
                       2   2             2   2
     -1     0                        
                  1                 2

o3 : ChainComplex