extensionInDegree -- places a copy of a module in a certain degree

Synopsis

• Usage:

  E = extensionInDegree(deg,Q,M)

• Inputs:
  • Q, a ring
  • M, a module, over the coefficient ring of Q
  • deg, a list, a multidegree for the ring Q
• Outputs:
  • E, a module, freely generated by a copy of M sitting in degree deg