charstr
description of the coefficient field of a ring (see charstr)
keepring
move ring to next upper level (see keepring)
npars
number of ring parameters (see npars)
nvars
number of ring variables (see nvars)
ordstr
monomial ordering of a ring (see ordstr)
parstr
names of all ring parameters or the
name of the n-th ring parameter (see parstr)
qring
quotient ring (see qring)
setring
set a new basering (see setring)
varstr
names of all ring variables or the
name of the n-th ring variable (see varstr)