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13-XX Commutative rings and algebras → ZMATH

13Bxx Ring extensions and related topics → ZMATH

13B02 Extension theory → ZMATH

13B05 Galois theory → ZMATH

13B10 Morphisms → ZMATH

13B21 Integral dependence → ZMATH

13B22 Integral closure of rings and ideals [See also 13A35]; integrally closed rings, related rings (Japanese, etc.) → ZMATH

13B24 Going up; going down; going between → ZMATH

13B25 Polynomials over commutative rings [See also 11C08, 13F20, 13M10] → ZMATH

13B30 Quotients and localization → ZMATH

13B35 Completion [See also 13J10] → ZMATH

13B40 Étale and flat extensions; Henselization; Artin approximation [See also 13J15, 14B12, 14B25] → ZMATH

13B99 None of the above, but in this section → ZMATH