HH^ZZ ChainComplexMap -- cohomology of a chain complex map

• Function: cohomology

• Usage:

  HH^i f

• Inputs:
  • i, an integer
  • f, a chain complex map
• Optional inputs:
  • Degree => ..., default value 0,
• Outputs:
  • a matrix, the i-th cohomology map induced by the chain complex map f