rootCount -- counts the number of roots of a chordal network

Synopsis

• Usage:

  rootCount N

• Inputs:
  • N, an instance of the type ChordalNet,
• Outputs:
  • an integer, an upper bound on the number of isolated roots

Description

i1 : I = chromaticIdeal(QQ, cycleGraph 10, 2);

o1 : Ideal of QQ[a..j]

i2 : N = chordalNet I;

i3 : chordalTria N;

i4 : rootCount N

o4 = 2

See also

• dim(ChordalNet) -- dimension of a chordal network
• codimCount -- codimension counts of the chains of a chordal network