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16Sxx - Rings and algebras arising under various constructions

16S10 - Rings determined by universal properties (free algebras, coproducts, adjunction of inverses, etc.) - 1 item
16S20 - Centralizing and normalizing extensions - 1 item
16S30 - Universal enveloping algebras of Lie algebras - 3 items
16S32 - Rings of differential operators - 1 item
16S34 - Group rings , Laurent polynomial rings - 4 items
16S36 - Ordinary and skew polynomial rings and semigroup rings - 9 items
16S40 - Smash products of general Hopf actions - 1 item
16S50 - Endomorphism rings; matrix rings - 4 items
16S60 - Rings of functions, subdirect products, sheaves of rings - 1 item
16S90 - Maximal ring of quotients, torsion theories, radicals on module categories - 1 item
16S99 - Miscellaneous - 8 items

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