List of Abstract Algebra Topics - Ring Theory

Ring Theory

General
  • Ring (mathematics)
  • Commutative algebra, Commutative ring
  • Ring theory, Noncommutative ring
  • Algebra over a field
    • Non-associative algebra
  • Relatives to rings: Semiring, Nearring, Rig (algebra)
Structure
  • Subring, Subalgebra
    • Center (algebra)
  • Ring ideal
    • Principal ideal
    • Ideal quotient
    • Maximal ideal, minimal ideal
    • Primitive ideal, prime ideal, semiprime ideal
    • Radical of an ideal
  • Jacobson radical
  • Socle of a ring
  • unit (ring theory), Idempotent, Nilpotent, Zero divisor
  • Characteristic (algebra)
  • Ring homomorphism, Algebra homomorphism
    • Ring epimorphism
    • Ring monomorphism
    • Ring isomorphism
      • Skolem–Noether theorem
  • Graded algebra
  • Morita equivalence
    • Brauer group
Constructions
  • Direct sum of rings, Product of rings
  • Quotient ring
  • Matrix ring
  • Endomorphism ring
  • Polynomial ring
  • Formal power series
  • Monoid ring, Group ring, Group algebra
  • Localization of a ring
  • Tensor algebra
    • Symmetric algebra, Exterior algebra, Clifford algebra
  • Free algebra
  • Completion (ring theory)
Types
  • Field (mathematics), Division ring, division algebra
  • Simple ring, Central simple algebra, Semisimple ring, Semisimple algebra
  • Primitive ring, Semiprimitive ring
  • Prime ring, Semiprime ring, Reduced ring
  • Integral domain, Domain (ring theory)
    • Field of fractions, Integral closure
    • Euclidean domain, Principal ideal domain, Unique factorization domain, Dedekind domain, Prüfer domain
  • Von Neumann regular ring
  • Quasi-Frobenius ring
  • Hereditary ring, Semihereditary ring
  • Local ring, Semi-local ring
  • Discrete valuation ring
  • Regular local ring
  • Cohen–Macaulay ring
  • Gorenstein ring
  • Artinian ring, Noetherian ring
  • Perfect ring, semiperfect ring
  • Baer ring, Rickart ring
  • Lie ring, Lie algebra
    • Ideal (Lie algebra)
  • Jordan algebra
  • Differential algebra
  • Banach algebra
Examples
  • Rational number, Real number, Complex number, Quaternions, Octonions
    • Hurwitz quaternion
  • Gaussian integer
Theorems and applications
  • Algebraic geometry
    • Hilbert's Nullstellensatz
  • Hilbert's basis theorem
  • Hopkins–Levitzki theorem
  • Krull's principal ideal theorem
  • Levitzky's theorem
  • Galois theory
    • Abel–Ruffini theorem
  • Artin-Wedderburn theorem
  • Jacobson density theorem
  • Wedderburn's little theorem
  • Lasker–Noether theorem

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