# schurLevel -- Number of SchurRings the ring is a tensor product of.

## Synopsis

• Usage:
lev = schurLevel(R)
• Inputs:
• Outputs:

## Description

For the representation ring R of a product of lev general linear groups, the function returns lev. If R is not a representation ring, then the function returns 0.

 i1 : R = schurRing(QQ,r,3); i2 : S = schurRing(R,s,5); i3 : T = schurRing(S,t,2); i4 : schurLevel R o4 = 1 i5 : schurLevel S o5 = 2 i6 : schurLevel T o6 = 3 i7 : schurLevel QQ o7 = 0

## Ways to use schurLevel :

• "schurLevel(Ring)"

## For the programmer

The object schurLevel is .