cohMatrix(ZZ,ZZ,Triplet) -- cohomology table in matrix form

Synopsis

• Function: cohMatrix
• Usage:
cohMatrix(lo,hi,T)
• Inputs:
• lo, an integer, the leftmost degree of the table
• hi, an integer, the rightmost degree of the table
• T, an instance of the type Triplet, a homology triplet
• Outputs:
• , a hypercohomology table in matrix form

Description

The hypercohomology table is written in the shifted form with H^i(E(d) in row i and column d+i.
 i1 : T = triplet({1,2,3}, {1,3}, {0,2,3}) o1 = {{1, 2, 3}, {1, 3}, {0, 2, 3}} o1 : Triplet i2 : cohMatrix(-7,4,T) o2 = | 77 50 30 16 7 2 0 0 0 0 0 0 | | 2 2 2 2 2 2 2 1 0 0 0 0 | | 0 0 0 0 0 0 0 0 1 2 3 4 | | 0 0 0 0 0 0 0 1 4 10 20 35 | o2 : MutableMatrix