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Chordal :: rootCount

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



This method counts the number of points (including multiplicities) in the variety of a chordal network, in case such variety is finite. If the variety is positive dimensional, then the method returns an upper bound on the number of isolated points.

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

Ways to use rootCount :

For the programmer

The object rootCount is a method function.