Mathematical Sciences Classification System

13Axx - General commutative ring theory

  • 4
    13A02
    Graded rings [See also 16W50]
  • 2
    13A05
    Divisibility; factorizations [See also 13F15]
  • 13A10
    Radical theory
  • 5
    13A15
    Ideals; multiplicative ideal theory
  • 4
    13A18
    Valuations and their generalizations [See also 12J20]
  • 2
    13A30
    Associated graded rings of ideals (Rees ring, form ring), analytic spread and related topics
  • 3
    13A35
    Characteristic $p$ methods (Frobenius endomorphism) and reduction to characteristic $p$; tight closure [See also 13B22]
  • 18
    13A50
    Actions of groups on commutative rings; invariant theory [See also 14L24]
  • 13A99
    None of the above, but in this section

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