The set of sums ranging over a multiplicative group and are elements of a field with all but a finite number of . Group rings are graded algebras.
Group Ring
See also
Graded Algebra, Group AlgebraExplore with Wolfram|Alpha
Cite this as:
Weisstein, Eric W. "Group Ring." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/GroupRing.html