quotient ring

noun

For a given ring R and ideal I contained in R, another ring, denoted R / I, whose elements are the cosets of I in R.

Similar
difference ringfactor ringresidue class ring

Meanings

nounquotient ring (plural quotient rings)

plural quotient rings

  1. ring theoryalgebraFor a given ring R and ideal I contained in R, another ring, denoted R / I, whose elements are the cosets of I in R.

    2. An ideal P of the ring R is prime if and only if the quotient ring R/P is a domain.

    2012, Oleg A. Logachev, A. A. Salnikov, V. V. Yashchenko, translated by Svetla Nikova, Boolean Functions in Coding Theory and Cryptography, American Mathematical Society, page 10
    2 more examples

    The third section covers a construct similar to the ring S°R — the maximal quotient ring, which exists for any ring. (When R is nonsingular, the maximal quotient ring is exactly S°R.) Finally, Section D provides an answer to the question of which right and left nonsingular rings have coinciding maximal right and left quotient rings.

    1976, Kenneth Goodearl, Ring Theory: Nonsingular Rings and Modules, CRC Press, page 39

    On the other hand if already every element of R is either invertible or a zerodivisor, then R is its own classical quotient ring.

    2006, Peter A. Linnell, “Noncommutative localization in group rings”, in Andrew Ranicki, editor, Noncommutative Localization in Algebra and Topology, Cambridge University Press, page 42

    Synonyms: difference ring, factor ring, residue class ring

Synonyms & antonyms

nounFor a given ring R and ideal I contained in R, another ring, denoted R / I, whose elements are the cosets of I in R.

Similar
difference ringfactor ringresidue class ring

Translations

French anneau quotient
  • anneau quotientring whose elements are the cosets of an ideal
Cite this entry
APA

quotient ring. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/quotient%20ring

MLA

“quotient ring.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/quotient%20ring. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “quotient ring,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/quotient%20ring.

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