ring of numbers

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• Ring theory — In abstract algebra, ring theory is the study of rings algebraic structures in which addition and multiplication are defined and have similar properties to those familiar from the integers. Ring theory studies the structure of rings, their… …   Wikipedia

• Ring finger — The ring finger on this hand is circled (left hand). Latin digitus annularis The ring finger is the fourth digit of the human hand, and the second most ulnar …   Wikipedia

• Ring Indicator — Ring Indicator, abbreviated as RI, is a signal that exists inside an RS232 serial communications cable that goes between a computer and a modem. The signal is sent from the modem to the computer, typically over pin 9 of a nine pin (DE9) serial… …   Wikipedia

• Ring a ring o' roses — Ring a ring o ros|es BrE Ring around the rosy AmE a children s singing game in which the children join hands and dance round in a circle singing: Ring a ring o roses/A pocket full of posies/A tishoo! A tishoo!/We all fall down. People believe it… …   Dictionary of contemporary English

• Ring (mathematics) — This article is about algebraic structures. For geometric rings, see Annulus (mathematics). For the set theory concept, see Ring of sets. Polynomials, represented here by curves, form a ring under addition and multiplication. In mathematics, a… …   Wikipedia

• Ring road — For other uses, see Ring road (disambiguation). Inner ring road of Sheffield, England …   Wikipedia

• Ring homomorphism — In ring theory or abstract algebra, a ring homomorphism is a function between two rings which respects the operations of addition and multiplication. More precisely, if R and S are rings, then a ring homomorphism is a function f : R → S such that …   Wikipedia

• Numbers in Norse mythology — The numbers three and nine are significant numbers in Norse mythology and paganism. Both numbers (and multiplications thereof) appear throughout surviving attestations of Norse paganism, in both mythology and cultic practice.[1] While the number… …   Wikipedia

• Numbers in Germanic paganism — The numbers three and nine are significant numbers in Germanic paganism and later Norse mythology. Both numbers (and multiplications thereof) appear throughout surviving attestations of Germanic paganism, in both Germanic mythology and religious… …   Wikipedia

• Ring of integers — In mathematics, the ring of integers is the set of integers making an algebraic structure Z with the operations of integer addition, negation, and multiplication. It is a commutative ring, and is the prototypical such by virtue of satisfying only …   Wikipedia

• Numbers game — Cut number redirects here; cut number also refers to the codes used to identify pasta varieties. Numbers game, also known as a numbers racket, policy racket or Italian lottery, is an illegal lottery played mostly in poor neighborhoods in the… …   Wikipedia