Induced quotient group gradings of epsilon-strongly graded rings
Induced quotient group gradings of epsilon-strongly graded rings
Let [Formula: see text] be a group and let [Formula: see text] be a [Formula: see text]-graded ring. Given a normal subgroup [Formula: see text] of [Formula: see text], there is a naturally induced [Formula: see text]-grading of [Formula: see text]. It is well known that if [Formula: see text] …