Kummer ring

== English == === Etymology === Named after Ernst Kummer (1810–1893), a German mathematician. === Noun === Kummer ring (plural Kummer rings) (algebra) A ring obtained by adjoining a non-real complex pth root of unity (where p is a prime number) to the ring of integers. ==== Meronyms ==== cyclotomic integer ==== Holonyms ==== cyclotomic field