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13Bxx
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Ring extensions and related topics
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- 13B02 Extension theory
- 13B05 Galois theory
- 13B10 Morphisms
- 13B21 Integral dependence
- 13B22 Integral closure of rings and ideals [See also 13A35]; integrally closed rings, related rings (Japanese, etc.)
- 13B24 Going up; going down; going between
- 13B25 Polynomials over commutative rings [See also 11C08, 13F20, 13M10]
- 13B30 Quotients and localization
- 13B35 Completion [See also 13J10]
- 13B40 Étale and flat extensions; Henselization; Artin approximation [See also 13J15, 14B12, 14B25]
- 13B99 None of the above, but in this section
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