reduceNet -- reduces a chordal network

Synopsis

• Usage:

  reduceNet N

• Inputs:
  • N, an instance of the type ChordalNet,
• Outputs:
  • no output
• Consequences:

  • the input chordal network is modified

Description

i1 : I = adjacentMinorsIdeal(QQ,2,4);

o1 : Ideal of QQ[a..h]

i2 : N = chordalNet I;

i3 : chordalTria N;

i4 : codimCount N

       5     4     3
o4 = 2t  + 6t  + 3t

o4 : ZZ[t]

i5 : reduceNet N

i6 : codimCount N

       4     3
o6 = 5t  + 3t

o6 : ZZ[t]

See also

• reduceDimension -- removes arcs of a chordal network of small dimension