numgens(SchurRing) -- Number of generators of Schur ring.

Given a Schur ring S, the function numgens outputs the number of generators of S. This is equal to the relative dimension of S over its base ring, and also to the maximal number of parts of a partition allowed as an index for the elements of S.

i1 : R = schurRing(QQ,r,6);

i2 : numgens R

o2 = 6

i3 : S = schurRing(s);

i4 : numgens S

o4 = infinity

o4 : InfiniteNumber